sonyu

@Tonny52 Modern NET Framework 4.8 can be installed on 1507 and 1511. Not officially but there is a way. I don't know if I'm allowed to post the how to here, 1511 it's the fastest I tried since 10.0.10074 beta compared to all other w10 modern builds. 1507 aka 10240 aka LTSB 2015 is not bad, but WDDM 2.0 works better with less ui lag in this build. Anyway best and fastest Windows it's 8.0 x64 of course

Windows 8.0 6.2.9200 is the best Windows with WDDM 1.2. I'm interested in this too since it's also possible to install Net Framework 4.8 on Server 2012 (same kernel as 8.0) and also PowerShell version 5.1

@ABCDEFG May you please reupload the video? I'm interested too in this

@LowLander The only problem with these builds is the taskbar skin option in StartIsBack by @Tihiy doesn't skin the taskbar buttons, it shows empty icons instead but you can use ViGlance by Lee-soft You can also port w8.1 files and use an utility to display W8.1 taskbar

search for w10 debloat scripts After some tests, I can say 10102 has a faster interface compared to 10064. They are really close in some performance tests, but Windows Interface in 10102 it's similar to w8.1 So in general terms 10102 it's faster and more stable than 10064 and 10074: 10102 > 10064 > 10074

I'm currently getting similar performance on LTSB 2015 updated and slimmed down and with lot of tweaks... When I say a lot I'm talking about multiple .reg and .bat files However I'm gonna apply all these tweaks on 10064 to see if I get similar score on PerformanceTest

@LowLander fre versions (CHK is checked build with extra packages for debugging) so: amd64fre_client-professional x86fre_client-enterprise x86fre_client-professional enterprise versions are faster but there is no x64 version, professional is ok in this case. Regards Currently I'm doing some tests on LTSB 2015 with a lot of tweaks applied. I'll post results about how fast it can be and also compared to 10064.

@LowLander 10074>10586>10240 In terms of performance, less resource usage, better cpu benchmark & better graphics... but 10064>10074 in terms of windows interface performance 10064 is the first 100% stable wddm 2.0 build and one of the latest Technical Preview Performance comparison between builds: Cpu sinlge thread performance: 10064>10102>10074 (yes, there's also a 10102 build dated before 10074) Gpu performance: 10102>10074>10062 windows interface performance: 10064>1074>10102 you need to tweak them a little so... considering I want the less UI lag as possible with best cpu usage, 10064 it's the best, also the most old so it's close to w8.1 10064,10102 and 10074 are faster than 10586. UI has less lag.

@Mr.Scienceman2000 Yes, w98 flies on these hardware. What I said is: why actual windows versions doesn't work faster than how w98 works in Pentium 150mhz, considering we have increased the hardware of these days x1000

@RanCorX2 what I said is w10 / w11 (aka w10 with new UI) it's getting slower with every new build I have it tweaked, with all bloatware removed, with all possible tweaks and I use some w81 dll files on it, but you can compare yourself the Windows Interface score between w8, w81, w10 beta, w10 rtm, w10 AU and w10 19XX & 20XX and w11 on "PerformanceTest" utility and you will see each score (in Windows Interface option) lower than the previous (if you do it from older to newer windows version w8->w10->w11) doesn't matter if you have tweaked all or if you disabled immersive shell (metro ui), it's not all bad, memory management of w10 it's better than w8 / 81 but GPU virtual VRAM pagination starting with WDDM 2.0 it's really a penalty. w11 has some potential but the UI isn't optimized, I think it's time for a new "w2k3toworkstation" but with w11 server, of course cause you need to apply 1000 tweaks and when you have a good working OS, "voila" windows shows "new update KBXXXXX is pending install". The only reason to have these new OSes starting with Vista, is the use of RAM cache and better memory management and also better cpu resource management. But starting with w8.1 GPU vram management gets worse, but still a nice OS compared to w10. w11 has potential, but for some reason they don't spend time optimizing the UI and adds tons of bloatware, icons, images, effects, transparencies, shadows, sounds, logon UI screens. w95,w98,wXP these were the good old days... Now we have an OS which is like a website. Why don't MS enable registry keys to force WDDM version? or to disable VRAM pagination? or to disable some DWM functions? and why can't we disable these rounded borders? it's like windows xp without xp. on the other hand automatic updates it's the worse thing you can put on an OS ... Windows was the best OS, I don't know what it will be if they don't allow us to -at least- disable windows update. It's like Vista again but now we have a very fast hardware: even the slower disk (Hdd) is running on a SATA3 port. So... do you really think windows 98 flies on Pentium 150 or Pentium III 1000 Mhz and current windows versions on modern hardware are slow ? once tweaked, w11 feels like w8.1 RTM when appeared but in nowadays hardware. Do you know what I mean? before the tweaks it's like Windows Vista SP0 on hardware designed for XP so how it feels before tweaked? well it's like having 2 GB of Ram and HDD again and installing vista sp0 on it...

Not all w10 versions are crap. You can run 10064 / 10074 and get a decent experience. These versions are more like 8.1 than 10 rtm and you can have GPU and Touchpad drivers for modern hardware (WDDM 2.0 in early stage) The only thing I hate is the empty icons on taskbar when I apply w7/w8 theme with StartIsBack++ but this is only a personal appreciation. Of course these builds aren't for everyone... If you can help me fixing the empty icons on taskbar, these will be the perfect windows versions right now, at least for modern hardware without support for w7 and w8

Update about FASTEST Windows 10 builds for normal hardware / Fanless devices / NUCS / Lowend hardware (max speed and the less LAG you can get without a dedicated graphic card; yes, running Intel Graphics ) : What I say about 1507 and 1607 it's not 100% true. Best version (after 10074) it's probably 1511 (10586), it's an improved version of the previous w10 version (10240). It doesn't update WDDM to 2.1, instead of it improves wddm 2.0 and memory management. At the end you get better disk usage and smooth GUI with less lag. How can you choose the perfect W10 version for lowend hardware? Use the XP era thinking when Windows 2003 appears. You could say "it has no sense to use one build or another if the Windows Server version has the same kernel version nowadays" This is the starting point In other words, fastest w10 Workstation editions shares the kernel version with the Windows Server edition. So now I can really understand why 10074 and 10586 are faster builds than 10240 (and also 1607 (14393), but it's the first one I started to hate because it has metro more integrated and lot of new things). Kernel version 10.0.X and Server build equivalence 10074 = Server 2016 Technical Preview 2 ( ¿Windows 8.2? ) 10240 = NO SERVER VERSION ONLY WORKSTATION RTM ( slow + lot of hdd usage in RTM ) Threshold 1 10514 = Server 2016 Technical Preview 3 ( I didn't tried this build but as you can see this server build is really close to 10586 TP4 ) 10586 = Server 2016 Technical Preview 4 ( Windows 10 November update Workstation kernel version ¿Windows 8.2 SP1: Service Pack 1? ) Threshold 2 14393 = Server 2016 RTM build ( After this one, all builds are pure Windows 10. You won't get Windows 7 / 8 / 8.1 experience anymore. In other words, starting with 1607 14939 builds are a little heavy for HDDs. 1607 it's not bad but some classic windows shell is removed, metro is more integrated, windows updates can't be controled as easy as in RTM and November update (10240-10586), WDDM version changed to 2.1 in this build so.. more things introduced ) WARNING To get the best speed of your CPU, make sure you have Disabled Meltdown and Spectre (these cpu protections are intended for servers running windows) _ttps://www.grc.com/inspectre.htm AND ALSO: If you want to get fast speed on every build starting with 1607 make sure you have Control Flow Guard disabled too (kernel 14393) ___ Another interesting script I recommend which really make a difference: Remove-Windows10-Bloat.bat by matthewjberger https://gist.github.com/matthewjberger/2f4295887d6cb5738fa34e597f457b7f ___ And also, what REALLY makes a difference it's DWS (Destroy Windows Spying) utility ___ + Windows Defender & Cortana disabled of course. ___ Get rid of Metro UI: rename c:\windows\system32\windows.immersiveshell.serviceprovider.dll to anything else and restart explorer.exe NOTE: All this information is based on a personal appreciation after I tried Windows 10 different versions on 4 different hardware configurations and compared the experience to the same hw running w7,w8 and w8.1

Ok, I'm only showing what you can do these days when you can't get the hardware recognized and working (with all drivers) because you can't downgrade to w7 6.1.7601, w8 6.2.9200 or w8.1 6.3.9600, for example. For some people only. Less hdd read/write so less i/o activity. I'm not telling it's better to have it on or to have it off. It depends on your RAM since it does memory compression when enabled. It's only one of all the things that me and probably all other advanced users here and there have tried to obtain the same desktop experience in w10 that we have had on w8.1 but sadly without lucky. _____ I always thought the same regarding to basic hardware and OSes: If it is slow with the Windows OS it has installed by default, try to get the previous version. Previous windows version always fly. There are some exceptions of course. But in Vista days I installed XP on every Vista laptop/pc and you always get a decent hardware and desktop experience to work with. Now it's the same story as in Vista days; w10 is slow as Vista SP0. If your laptop/pc comes with w10 and you CAN install 7, 8.0 or 8.1 you have a very fast OS (Vista SP2 is as fast as Windows 7 but most people don't know because doesn't have popularity). But if you need to loose time and time and time and time and can't get GPU acceleration working, touchpad working.. or something similar.. it's not viable to have w7/w8/w81 installed since you can get the 100% of the hardware juice. In this case, in my opinion, stay with w10 RTM 1507 ltsb or 1607 ltsb but it's laggy although tweaked as much as you can. I always look at Windows Display Driver Model in every Windows version. Currently there are 2 or maybe 3 eras in terms of computing, windows and resource usaging. You can identify which Windows version is the best for you depending on your hardware. Since w8.1 you need some modern hardware because it requires more resources to do the same. But basically: In terms of GPU resource usage for basic hardware: 1) from XP --- to 8.0 (best desktop experience) XPDDM to WDDM 1.2 if you machine comes with Vista SP0 you can install XP and get a decent experience. You can also install w7 or w8.0 since I have done it and it works nice too. If you want the best memory management in old hardware and you have WDDM compatible GPU, install w8.0 2) 8.1 ( needs more gpu and metro it's more integrated than in w8.0, coincidence? ) WDDM 1.3 you can install w8.0 on a machine coming with w8.1 and you will aways get a smoother OS and less resource usaging 3) 10 ( need at least hardware that can run 8.1 but it's not enough ) WDDM 2.0+ here we are in Vista era again, but XP is not supported on modern hardware anymore, so the way it's a little different but almost the same: install previous OS version if you can. w8.1 run fine if the hardware comes with w10. But if you can't get all devices working on it you need to research for something like what I explain in the first post here. In terms of Memory usage: w8.1 and w10 are the best. w10 does it better than w8.1 since introduces memory compression and other things. It's the only thing I really like and apreciate of w10 in basic hardware. __________________________ Why I always prefer w8.0 and not w7 sp1 ?? _ttps://blogs.msdn.microsoft.com/b8/2011/10/07/reducing-runtime-memory-in-windows-8 w7 memory usage: _ttps://msdnshared.blob.core.windows.net/media/MSDNBlogsFS/prod.evol.blogs.msdn.com/CommunityServer.Blogs.Components.WeblogFiles/00/00/01/29/43/metablogapi/8270.Figure-1---Memory-usage-in-Windows-7-SP1_thumb_30B5D3F2.png w8 memory usage: _ttps://msdnshared.blob.core.windows.net/media/MSDNBlogsFS/prod.evol.blogs.msdn.com/CommunityServer.Blogs.Components.WeblogFiles/00/00/01/29/43/metablogapi/0172.Figure-2---Memory-usage-in-Windows-8_thumb_3049A0FD.png ___________________________ Coming back again to the topic and in my opinion: All w10 beta (pre-RTM 10240) versions are interesting w8 versions. Most, if not all of them, are very stable OSes.

This is not Windows 10, yes it's w10 build but it's more like 8.1 until build 10122 more or less (which is laggy like w10 rtm and uses lot of hdd + slow explorer). You can install modern graphic cards on it. You can also run modern hardware on it which haven't got drivers for w8.1 9600. I can't answer to this: "I find the fact that you have to run this build with the wrong date alone problematic." since it is not allowed in forum rules.

Hi everybody, I want to share something I discovered yesterday after days trying different builds between w8.1 (6.3.6900) and w10 rtm (10.0.10240) to get all my drivers working but without the slowness of w10. Warning: - If you have a powerful cpu and a dedicated gpu, with 16gb or 32 gb of RAM you probably don't care about which version of windows 10 you are running and all I'm gonna tell you is not addressed to you. - This is addressed to people who want to get w7 / w8 / w8.1 general OS speed in w10 in a PC / Laptop / Ultrabook / Tablet without a dedicated GPU and also cannot run older windows versions like w7 / w8/ w81 on newer hardware because of drivers or bios incompatibilities, for example. - This is not another post to talk about LTSB 2015/2016, LTSC 2019 or other normal builds like 1809, 1903, 1909... - This post is intended to get the fastest Windows 10 version based on a Windows 10 beta build, which, at the same time, it's based on something between 6.3.9600 and 10.0.10240 but it's compatible and faster on modern hardware. - So this is to get the best possible experience on a nowadays basic hardware: INTEL cpu/gpu + 4GB ram + HDD + no dedicated gpu. WHAT YOU -probably- HAVE TRIED UNTIL now to get the fastest OS as possible: After lot of attempts to get anything different than w10 working on a new laptop, as you know it has lag, it's slow on HDDs, has some Standby Memory issues (at least in 10240 rtm / 1507 ltsb ) which need to be fixed using third party software, and explorer is very slow too. And also in every update you lost your telemetry/privacy config and also you can't full control when updates are installed since 1607.. Of course I tried disabling things like Spectre Meltdown, tools to remove metro immersive shell, tweaking mmcss, tweaking svchost, tweaking Win32PrioritySeparation, multimedia performance values, intelppm (which seems limites the cpu max speed; search about it)... I also tried OldNewExplorer/RibbonDisabler, Winaero tweaker, Ultimate Windows Tweaker, blackviper services, startisback, superfetch off, winxshell... Yes, you can get a decent OS, of course all of this was tried on LTSB 2015 & 2016. But after all these tweaks are applied.. you always thing the same: W.10.W.C.E. (these is a topic about w10 in the forum deciphering these initials). So, after a lot of time tweaking trying to get something decent or similar to w7/w8 experience you ended with less cpu usage and less ram usage but the lag are still here, well, if you have a SSD, you get more or less the same experience you will get in w7 / w8 / w8.1 on a HDD. LONG STORY SHORT: w7 / w8.0 / w8.1 performance on Windows 10: Build 10.0.10074 Yes: - It's compatible with all new hardware supported since 10240. It doesn't have the slow explorer & the GUI lag. - Modern Intel cpus/gpus are supported. It has WDDM 2.0 enabled but in an early version, so it's something between 1.3 & 2.0. All w10 THRESHOLD1 RTM drivers are working on it. - Metro is not as heavy as it is on 10240 RTM probably cause it's not finished. - No lag, and the benefits of the amazing memory management in w10 + Less resource usage. Why this build? - It has some updates (6) available: https://changewindows.org/build/10074/server - The last update (server version) ends with the same number as the RTM mmmmm strange.. isn't it? considering Official RTM is 10.0.10240 --> 10.0.10074.240, yes 240 - As you can see it's updated until SEP 15' (2 months after 10.0.10240 RTM was released), maybe it's possible to install these updates (x64) on client version like @greenhillmaniac does in w8 ( https://msfn.org/board/topic/175105-server-2012-updates-on-windows-8/ ) Other observarions: - When you install server version (Server Technical Preview 2 which is Server 2016 beta build) you can see "Server 2012 R2" strings in some parts of the installation. Server 2012 R2 is based on w8.1 as you know so maybe it's the reason it is, at least, as fast as w7 & w8, but considering the w8.1 metro part it's removed because the w10 metro it's under development, you get something more like w8.0 than w8.1 in terms of resource usage. - You can get a very modular OS if you install the Server version (only 512 mb of RAM in the requirements, I tried and it uses less than this) but I can't get bluetooth working (I know some people changed things in registry to get it working) - As I read somewhere: Startisback 1.0 RC2 (probably 1.0 final ) it's compatible. In case you want to skin the taskbar and increase the buttons size.. - If you try the server version make sure you change your power plan to High Performance since the power plan can affect in different way in server version: powercfg.exe /setactive 8c5e7fda-e8bf-4a96-9a85-a6e23a8c635c Problem: - If you don't change your bios date you can't boot it since it's timebombed to 2015 _________________ Believe me, try it and give me your feedback, please.. You won't believe how fast & smooth it is compared to all other w10 versions. Thanks Regards

Hi everybody, I2C & GPIO it's only related to touchpad and has nothing to do with Intel UHD 600. I can boot a version between windows 8.0 and 8.1. This beta version: windows build 6.3.9369 and it recognizes in Device Manager my Graphic cards with Microsoft Basic Display adapter however the hardware id it's correct & detected (VEN_8086&DEV_3185). So now.. I tried to make a modified INF driver with no lucky. Can somebody help me? I tried adding this to a inf file: %iGLKGT2E12% = iSKLD_w81, PCI\VEN_8086&DEV_3185 and also tried what I supposed it's a compatible version based on what I read in notebookcheck (previous model Kaby Lake based): iBXTGTP12 Intel HD 500 https://www.notebookcheck.net/Intel-UHD-Graphics-600-GPU.271820.0.html https://www.notebookcheck.net/Intel-HD-Graphics-500.182723.0.html UHD Graphics 600 12 @ 300 - 700 (Boost) MHz 64/128 Bit HD Graphics 500 (compare) 12 @ 300 - 700 (Boost) MHz 64/128 Bit Well, these are the interesting links I have about modding Intel HD drivers: This is the -official- driver I am currently running on WINDOWS 10 RTM 10240 TH1): https://forums.laptopvideo2go.com/topic/32095-2220164836-15491-8th-7th-and-6th-generation-coffee-lake-kaby-lake-skylake-gemini-lake-and-broxton-apollo-lake-windows-10/ It is possible to port it to w8.1? This is what I read: https://www.techinferno.com/index.php?/forums/topic/12377-way-to-make-intel-uhd-620-graphics-driver-to-works-in-windows-7-no-crash-in-video-play-back-3d-function-normally/&tab=comments#comment-168268 "The graphics processors on not only Intel 6th gen mobile, but also all 7th and 8th gen processors are all based on Gen 9 LP (generation 9 Low Power) graphics core architecture. " --> https://www.texpion.com/2018/06/Intel-7th-and-8th-generation-processor-graphics-driver-for-Windows-7-8-8.1.html https://forums.laptopvideo2go.com/topic/33299-win-7-andor-win-81-display-driver-for-gemini-lake/ https://forum.videohelp.com/threads/390651-Way-to-make-Intel-UHD-620-graphics-driver-to-works-in-windows-7-(no-crash) Can I use something from there forum links?: Win 7 x64 Coffee Like UHD 630 Video driver (3) [OFFER] 7th/8th Gen. Intel GPU drivers for Win7/8.1 Can somebody make a modded w8 driver for: %iGLKGT2E12% = iSKLD_w81, PCI\VEN_8086&DEV_3185 If I run dxdiag on 6.3.9369 it uses WDDM 1.3 (default 8.1 wddm) When I boot to 6.3.9369 and opened device manager I can see yellow exclamation under Display Drivers -> Microsoft Basic Display Driver and if I open Properties -> General I can see: "This device is currently waiting on another device or set of devices to start. (Code 51)" Just trying updating to win10 rtm uhd 600 driver and the same. I also tried this one I just found right now which has the hardware id..but only installs an audio driver: https://www.win-raid.com/t4346f42-OFFER-th-th-Gen-Intel-GPU-drivers-for-Win.html#msg103355 https://www.win-raid.com/t5684f52-Problem-installing-intel-UHD-on-Win.html and the same, I get the code 51 error.. don't know why since I have all the devices installed on device manager and only 4 without install which are the ones commented in the first post: ACPI\INT3453\1 ACPI\INT3453\2 ACPI\INT3453\3 ACPI\INT3453\4 I'm gonna try installing with the "adding legacy hardware" way in a full windows 8.1 6.3 rtm installation since I can't boot to w8.0 due to ACPI_BIOS_ERROR It's a shame because windows 8 flies on this hardware compared to w10.. _____ It needs to be something related to w8.1 Some people with previous GEN (HD 500) has the same problem under windows 8.1 as you can read here: _ttps://answers.microsoft.com/en-us/windows/forum/all/mysterius-intel-hd-graphics-compatibility/e8365c5c-5b5f-4b28-b250-c00780a05b64 I don't know how can I boot w8.0, I will try to get another beta build based on 6.2 and WDDM 1.2 to see what happen and if the code 51 disappears.. Maybe I need to change something in bios? You can see all my bios options here (attached .txt file) Lot of thanks, Regards LENOVO BIOS OPTIONS - Section_PE32_image_DriverSampleDxe_SetupUtility IFR2.txt

yes! sorry!! I edited all the links @jaclaz now are correct

Yes it is an Insyde Bios @Tripredacus Last update I installed: https://support.lenovo.com/es/en/downloads/ds503429

I tried to search DEV_3185 in msinfo32 and I get: No matches found And also, when I go to Components > Display" in msinfo32 there is no information, all is blank. Of course I have the device up and running on w10 and this is how it looks in Components > Display in Windows 10 Name Intel(R) UHD Graphics 600 PNP Device ID PCI\VEN_8086&DEV_3185&SUBSYS_398A17AA&REV_03\3&11583659&0&10 Adapter Type Intel(R) UHD Graphics Family, Intel Corporation compatible Adapter Description Intel(R) UHD Graphics 600 Adapter RAM 1.00 GB (1,073,741,824 bytes) Installed Drivers igdumdim64,igd10iumd64,igd10iumd64,igd12umd64,igdumdim32,igd10iumd32,igd10iumd32,igd12umd32 Driver Version 25.20.100.6373 INF File oem34.inf (iGLKD_w10_DS section) Color Planes Not Available Color Table Entries 4294967296 Resolution 1366 x 768 x 60 hertz Bits/Pixel 32 Memory Address 0xA0000000-0xA0FFFFFF Memory Address 0x90000000-0x9FFFFFFF I/O Port 0x00002000-0x0000203F IRQ Channel IRQ 4294967291 I/O Port 0x000003B0-0x000003BB I/O Port 0x000003C0-0x000003DF Memory Address 0xA0000-0xBFFFF Driver c:\windows\system32\driverstore\filerepository\igdlh64.inf_amd64_6ae0ddbb4a38e23c\igdkmd64.sys (25.20.100.6373, 14.73 MB (15,447,904 bytes), 3/31/2019 8:46 PM)

Will I have to mod the BIOS? This is what I get on GPUZ: and CPUz As you can see the GPU is not detected in these applications (as in Device Manager and in Windows in general except for HWINFO and AIDA64) but Chipset drivers are installed (with driver signing turned off) HWINFO: _____ Tests I have done to install a modded (w7 & w81) INF: Trying with Add Legacy Hardware -> Display adapters -> Selecting modded driver inf ___ Useful info I found to mod a 8th generation Intel driver and get it working on w7/w8/w8.1: My gpu in inf file: %iGLKGT2E12% = iGLKD_w10_DS, PCI\VEN_8086&DEV_3185&SUBSYS_398A17AA ____ https://www.texpion.com/2018/06/Intel-7th-and-8th-generation-processor-graphics-driver-for-Windows-7-8-8.1.html https://forum.videohelp.com/threads/390651-Way-to-make-Intel-UHD-620-graphics-driver-to-works-in-windows-7-(no-crash) https://translate.google.com/translate?hl=en&sl=zh-CN&u=https://www.itsk.com/thread-388189-1-1.html&prev=search Intel HD only (mine is UHD): https://forums.intel.com/s/question/0D50P0000490QnOSAU/cant-find-correct-graphics-driver-for-windows-7?language=en_US https://forums.intel.com/s/question/0D50P0000490WETSA2/use-intel-uhd-graphics-620-in-windows-7?language=en_US ___ Can somebody help me to install these? As I read in some cases (for nvidia gpus), it could be an ACPI version, but haven't the Advanced tab on BIOS to change things in ACPI: This is a bios dump I have made using FPTW64 (Flash Programming Tool) if somebody can analyze it: http://www.mediafire.com/file/usb8lspzi59mw9w/biosreg.bin/file And another backup I made using H2OFFT-W: https://www.mediafire.com/file/d9jbkn2ju3gksfc/backup.bin/file

As I know the problem is not related to this driver, the problem is the graphics card not detected in w8.1, is tehre any bios dump software to check if is there any bios option to change acpi mode and get it detect detected on windows 8.1 ? @Tripredacus @blackwingcat Thanks, Regards

These are the devices I see in w10 vs Devices I see on w8 under System devices I will check 31D7 and 31D6 because the device name is different.. And also I will try to update PCI Express Root Complex considering its the parent of the graphics card And Windows 10 devices by connection:

Yes, I have all drivers installed and working on w10. The parent for the Intel Graphics card in Device Manager is: ACPI\PNP0A08\0 So I need to be sure it is installed and working on w81 or I need to check if this other device has a parent too ? I searched for the device on DevManView and found this: PCI Express Root Complex (Standard system devices) pci System ACPI\PNP0A08\0 0x00000030 0x00000000 No Yes 3/14/2019 8:14:52 PM 3/14/2019 8:14:52 PM {00000000-0000-0000-ffff-ffffffffffff} PCI Express Root Complex 10.0.18343.1 pci.inf PCI_ROOT 6/21/2006 3/12/2019 9:07:02 PM The parent for this is: ACPI_HAL\PNP0C08\0 which is: Microsoft ACPI-Compliant System Microsoft ACPI System ACPI_HAL\PNP0C08\0 0x00000030 0x00000000 No Yes 3/14/2019 8:14:52 PM 3/12/2019 9:07:02 PM {00000000-0000-0000-ffff-ffffffffffff} Microsoft ACPI-Compliant System 10.0.18343.1 acpi.inf ACPI_Inst.NT 6/21/2006 3/12/2019 9:07:02 PM which has this one as a parent: ACPI x64-based PC (Standard computers) \Driver\ACPI_HAL Computer ROOT\ACPI_HAL\0000 0x00000000 0x00000000 No No 3/14/2019 8:14:51 PM {00000000-0000-0000-FFFF-FFFFFFFFFFFF} ACPI x64-based PC 10.0.18343.1 hal.inf ACPI_AMD64_HAL 6/21/2006 3/12/2019 9:07:02 PM mmmm I'm gonna check for the PNP0A08\0 on w81 now..

So why the graphics card is not detected on windows 8.1? No display adapter is show on Device Manager its an ACPI related question?

Ok, this is the original window 10 x64 driver for INT3453: https://download.lenovo.com/consumer/mobiles/a8l105af.exe https://pcsupport.lenovo.com/es/en/products/LAPTOPS-AND-NETBOOKS/300-SERIES/330-15IGM/downloads/DS503390 (the .exe extracts the content of the driver to a folder before the install) and this is the same driver with .inf modified by me https://www.mediafire.com/file/7zt5hs9bkb4g4hp/drv.zip/file May you take a look at the .sys file to see if you can adapt it for w8.1 x64 @blackwingcat or somebody in the forum, please? Thanks