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How to speed up boot process under Windows Vista or Windows 7

MagicAndre1981
in Windows Tips 'n' Tweaks

Featured Replies

I imaged back to see and cold boot before was over 90 seconds so good enough for me. Just through bios on this dell takes 20 seconds so not much can do there. I know how to look at them things cause I used bootvis in XP


  • 2 months later...

I got a error code something with can not load kernel logger. This happen after the first boot when i was going to prepare the system. It failed 5 times :(

Where do you find that?

Never mind! found it.

[2010/10/02-22:25:39.694] Detected Win7RTM physical (ReadyBoot) prefetcher; the SysMain service is auto-started.

[2010/10/02-22:25:39.741] Registering for auto-run with a 120000 msec delay...

[2010/10/02-22:25:39.744] Completed auto-run change.

[2010/10/02-22:25:39.769] Starting trace...

[2010/10/02-22:25:41.981] Enabled boot logging to 'C:\Windows\system32\bootPrep_BASE+CSWITCH_1_km_premerge.etl'

[2010/10/02-22:27:46.798] Detected Win7RTM physical (ReadyBoot) prefetcher; the SysMain service is auto-started.

[2010/10/02-22:27:46.814] Stopping trace...

[2010/10/02-22:27:50.230] Stopped kernel logger.

[2010/10/02-22:27:50.340] Stopped user-mode logger.

[2010/10/02-22:27:50.340] The trace you are capturing "C:\Windows\system32\bootPrep_BASE+CSWITCH_1.etl" may contain personally identifiable information, including but not necessarily limited to paths to files accessed, paths to registry accessed and process names. Exact information depends on the events that were logged. Please be aware of this when sharing out this trace with other people.

[2010/10/02-22:28:07.812] Merged ETL file to 'C:\Windows\system32\bootPrep_BASE+CSWITCH_1.etl'

[2010/10/02-22:28:07.812] Waiting for prefetcher...

[2010/10/02-22:28:07.827] Waiting for Win7RTM prefetcher done.

[2010/10/02-22:28:07.827] Saving prefetcher data...

[2010/10/02-22:28:07.843] Failed to save prefetcher data (C:\Windows\prefetch\layout.ini) in cab archive (stage 1, error 0)

[2010/10/02-22:28:12.024] Saved prefetcher data from C:\Windows\prefetch\ReadyBoot\*.* in cab archive.

[2010/10/02-22:28:12.024] Saved prefetcher data from C:\Windows\prefetch\AgCx*.db in cab archive.

[2010/10/02-22:28:12.351] Saved prefetcher data from C:\Windows\system32\bootPrep_BASE+CSWITCH_1.ppf.newPlan in cab archive

[2010/10/02-22:28:12.351] Starting trace...

[2010/10/02-22:28:12.382] Enabled boot logging to 'C:\Windows\system32\bootPrep_BASE+CSWITCH_2_km_premerge.etl'

[2010/10/02-22:30:58.030] Detected Win7RTM physical (ReadyBoot) prefetcher; the SysMain service is auto-started.

[2010/10/02-22:30:58.046] Stopping trace...

[2010/10/02-22:31:01.384] Stopped kernel logger.

[2010/10/02-22:31:01.493] Stopped user-mode logger.

[2010/10/02-22:31:01.493] The trace you are capturing "C:\Windows\system32\bootPrep_BASE+CSWITCH_2.etl" may contain personally identifiable information, including but not necessarily limited to paths to files accessed, paths to registry accessed and process names. Exact information depends on the events that were logged. Please be aware of this when sharing out this trace with other people.

[2010/10/02-22:31:20.556] Merged ETL file to 'C:\Windows\system32\bootPrep_BASE+CSWITCH_2.etl'

[2010/10/02-22:31:20.572] Waiting for prefetcher...

[2010/10/02-22:31:20.572] Waiting for Win7RTM prefetcher done.

[2010/10/02-22:31:20.572] Saving prefetcher data...

[2010/10/02-22:31:20.603] Failed to save prefetcher data (C:\Windows\prefetch\layout.ini) in cab archive (stage 1, error 0)

[2010/10/02-22:31:28.247] Saved prefetcher data from C:\Windows\prefetch\ReadyBoot\*.* in cab archive.

[2010/10/02-22:31:28.247] Saved prefetcher data from C:\Windows\prefetch\AgCx*.db in cab archive.

[2010/10/02-22:31:28.606] Saved prefetcher data from C:\Windows\system32\bootPrep_BASE+CSWITCH_2.ppf.newPlan in cab archive

[2010/10/02-22:31:28.622] Preparing system...

[2010/10/02-22:31:28.622] Launching attempt #1 to defragment disk...

[2010/10/02-22:32:24.844] ProcessIdleTasks returned.

[2010/10/02-22:32:24.844] Failed to determine if defrag worked - couldn't query registry key. Retrying.

[2010/10/02-22:32:24.844] Launching attempt #2 to defragment disk...

[2010/10/02-22:32:43.705] ProcessIdleTasks returned.

[2010/10/02-22:32:43.705] Failed to determine if defrag worked - couldn't query registry key. Retrying.

[2010/10/02-22:32:43.705] Launching attempt #3 to defragment disk...

[2010/10/02-22:33:03.501] ProcessIdleTasks returned.

[2010/10/02-22:33:03.501] Failed to determine if defrag worked - couldn't query registry key. Retrying.

[2010/10/02-22:33:03.501] Launching attempt #4 to defragment disk...

[2010/10/02-22:33:23.391] ProcessIdleTasks returned.

[2010/10/02-22:33:23.391] Failed to determine if defrag worked - couldn't query registry key. Retrying.

[2010/10/02-22:33:23.391] Launching attempt #5 to defragment disk...

[2010/10/02-22:33:43.172] ProcessIdleTasks returned.

[2010/10/02-22:33:43.172] Failed to determine if defrag worked - couldn't query registry key. Retrying.

[2010/10/02-22:33:43.172] Failed to defragment disk after 5 attempts.

[2010/10/02-22:33:43.172] PrepareSystem failed.

[2010/10/02-22:33:43.172] Stopping trace...

[2010/10/02-22:33:43.266] Couldn't find kernel logger in active logger list.

[2010/10/02-22:33:43.266] Couldn't find user-mode logger in active logger list.

[2010/10/02-22:33:43.266] Unregistering auto-run...

[2010/10/02-22:33:43.266] Completed auto-run change.

[2010/10/02-23:27:38.545] Detected Win7RTM physical (ReadyBoot) prefetcher; the SysMain service is auto-started.

[2010/10/02-23:27:38.583] Registering for auto-run with a 120000 msec delay...

[2010/10/02-23:27:38.583] Completed auto-run change.

[2010/10/02-23:27:38.608] Starting trace...

[2010/10/02-23:27:39.330] Enabled boot logging to 'C:\Windows\system32\bootPrep_BASE+CSWITCH_1_km_premerge.etl'

[2010/10/02-23:30:42.295] Detected Win7RTM physical (ReadyBoot) prefetcher; the SysMain service is auto-started.

[2010/10/02-23:30:42.311] Stopping trace...

[2010/10/02-23:30:45.665] Stopped kernel logger.

[2010/10/02-23:30:45.774] Stopped user-mode logger.

[2010/10/02-23:30:45.774] The trace you are capturing "C:\Windows\system32\bootPrep_BASE+CSWITCH_1.etl" may contain personally identifiable information, including but not necessarily limited to paths to files accessed, paths to registry accessed and process names. Exact information depends on the events that were logged. Please be aware of this when sharing out this trace with other people.

[2010/10/02-23:31:03.153] Merged ETL file to 'C:\Windows\system32\bootPrep_BASE+CSWITCH_1.etl'

[2010/10/02-23:31:03.168] Waiting for prefetcher...

[2010/10/02-23:31:03.168] Waiting for Win7RTM prefetcher done.

[2010/10/02-23:31:03.168] Saving prefetcher data...

[2010/10/02-23:31:03.215] Failed to save prefetcher data (C:\Windows\prefetch\layout.ini) in cab archive (stage 1, error 0)

[2010/10/02-23:31:08.082] Saved prefetcher data from C:\Windows\prefetch\ReadyBoot\*.* in cab archive.

[2010/10/02-23:31:08.082] Saved prefetcher data from C:\Windows\prefetch\AgCx*.db in cab archive.

[2010/10/02-23:31:08.425] Saved prefetcher data from C:\Windows\system32\bootPrep_BASE+CSWITCH_1.ppf.newPlan in cab archive

[2010/10/02-23:31:08.425] Starting trace...

[2010/10/02-23:31:08.472] Enabled boot logging to 'C:\Windows\system32\bootPrep_BASE+CSWITCH_2_km_premerge.etl'

[2010/10/02-23:33:58.928] Detected Win7RTM physical (ReadyBoot) prefetcher; the SysMain service is auto-started.

[2010/10/02-23:33:58.943] Stopping trace...

[2010/10/02-23:34:01.861] Stopped kernel logger.

[2010/10/02-23:34:01.970] Stopped user-mode logger.

[2010/10/02-23:34:01.970] The trace you are capturing "C:\Windows\system32\bootPrep_BASE+CSWITCH_2.etl" may contain personally identifiable information, including but not necessarily limited to paths to files accessed, paths to registry accessed and process names. Exact information depends on the events that were logged. Please be aware of this when sharing out this trace with other people.

[2010/10/02-23:34:14.559] Merged ETL file to 'C:\Windows\system32\bootPrep_BASE+CSWITCH_2.etl'

[2010/10/02-23:34:14.575] Waiting for prefetcher...

[2010/10/02-23:34:14.575] Waiting for Win7RTM prefetcher done.

[2010/10/02-23:34:14.575] Saving prefetcher data...

[2010/10/02-23:34:14.606] Failed to save prefetcher data (C:\Windows\prefetch\layout.ini) in cab archive (stage 1, error 0)

[2010/10/02-23:34:21.532] Saved prefetcher data from C:\Windows\prefetch\ReadyBoot\*.* in cab archive.

[2010/10/02-23:34:21.532] Saved prefetcher data from C:\Windows\prefetch\AgCx*.db in cab archive.

[2010/10/02-23:34:21.829] Saved prefetcher data from C:\Windows\system32\bootPrep_BASE+CSWITCH_2.ppf.newPlan in cab archive

[2010/10/02-23:34:21.844] Preparing system...

[2010/10/02-23:34:21.844] Launching attempt #1 to defragment disk...

[2010/10/02-23:35:16.865] ProcessIdleTasks returned.

[2010/10/02-23:35:16.865] Failed to determine if defrag worked - couldn't query registry key. Retrying.

[2010/10/02-23:35:16.865] Launching attempt #2 to defragment disk...

[2010/10/02-23:35:36.494] ProcessIdleTasks returned.

[2010/10/02-23:35:36.494] Failed to determine if defrag worked - couldn't query registry key. Retrying.

[2010/10/02-23:35:36.494] Launching attempt #3 to defragment disk...

[2010/10/02-23:35:56.141] ProcessIdleTasks returned.

[2010/10/02-23:35:56.141] Failed to determine if defrag worked - couldn't query registry key. Retrying.

[2010/10/02-23:35:56.141] Launching attempt #4 to defragment disk...

[2010/10/02-23:36:10.852] ProcessIdleTasks returned.

[2010/10/02-23:36:10.852] Failed to determine if defrag worked - couldn't query registry key. Retrying.

[2010/10/02-23:36:10.852] Launching attempt #5 to defragment disk...

[2010/10/02-23:36:27.488] ProcessIdleTasks returned.

[2010/10/02-23:36:27.488] Failed to determine if defrag worked - couldn't query registry key. Retrying.

[2010/10/02-23:36:27.488] Failed to defragment disk after 5 attempts.

[2010/10/02-23:36:27.488] PrepareSystem failed.

[2010/10/02-23:36:27.488] Stopping trace...

[2010/10/02-23:36:27.582] Couldn't find kernel logger in active logger list.

[2010/10/02-23:36:27.582] Couldn't find user-mode logger in active logger list.

[2010/10/02-23:36:27.582] Unregistering auto-run...

[2010/10/02-23:36:27.582] Completed auto-run change.

[2010/10/03-19:32:45.074] Detected Win7RTM physical (ReadyBoot) prefetcher; the SysMain service is auto-started.

[2010/10/03-19:32:45.167] Registering for auto-run with a 120000 msec delay...

[2010/10/03-19:32:45.167] Completed auto-run change.

[2010/10/03-19:32:45.187] Starting trace...

[2010/10/03-19:32:47.482] Enabled boot logging to 'C:\Windows\system32\bootPrep_BASE+CSWITCH_1_km_premerge.etl'

[2010/10/03-19:36:09.329] Detected Win7RTM physical (ReadyBoot) prefetcher; the SysMain service is auto-started.

[2010/10/03-19:36:09.329] Stopping trace...

[2010/10/03-19:36:11.825] Stopped kernel logger.

[2010/10/03-19:36:11.949] Stopped user-mode logger.

[2010/10/03-19:36:11.949] The trace you are capturing "C:\Windows\system32\bootPrep_BASE+CSWITCH_1.etl" may contain personally identifiable information, including but not necessarily limited to paths to files accessed, paths to registry accessed and process names. Exact information depends on the events that were logged. Please be aware of this when sharing out this trace with other people.

[2010/10/03-19:36:25.069] Merged ETL file to 'C:\Windows\system32\bootPrep_BASE+CSWITCH_1.etl'

[2010/10/03-19:36:25.085] Waiting for prefetcher...

[2010/10/03-19:36:25.085] Waiting for Win7RTM prefetcher done.

[2010/10/03-19:36:25.085] Saving prefetcher data...

[2010/10/03-19:36:25.116] Failed to save prefetcher data (C:\Windows\prefetch\layout.ini) in cab archive (stage 1, error 0)

[2010/10/03-19:36:37.549] Saved prefetcher data from C:\Windows\prefetch\ReadyBoot\*.* in cab archive.

[2010/10/03-19:36:37.549] Saved prefetcher data from C:\Windows\prefetch\AgCx*.db in cab archive.

[2010/10/03-19:36:37.799] Saved prefetcher data from C:\Windows\system32\bootPrep_BASE+CSWITCH_1.ppf.newPlan in cab archive

[2010/10/03-19:36:37.814] Starting trace...

[2010/10/03-19:36:37.861] Enabled boot logging to 'C:\Windows\system32\bootPrep_BASE+CSWITCH_2_km_premerge.etl'

[2010/10/03-19:37:34.283] Detected Win7RTM physical (ReadyBoot) prefetcher; the SysMain service is auto-started.

[2010/10/03-19:37:34.299] Stopping trace...

[2010/10/03-19:37:37.871] Stopped kernel logger.

[2010/10/03-19:37:37.980] Stopped user-mode logger.

[2010/10/03-19:37:37.980] The trace you are capturing "C:\Windows\system32\bootPrep_BASE+CSWITCH_2.etl" may contain personally identifiable information, including but not necessarily limited to paths to files accessed, paths to registry accessed and process names. Exact information depends on the events that were logged. Please be aware of this when sharing out this trace with other people.

[2010/10/03-19:37:44.657] Merged ETL file to 'C:\Windows\system32\bootPrep_BASE+CSWITCH_2.etl'

[2010/10/03-19:37:44.673] Waiting for prefetcher...

[2010/10/03-19:38:24.734] Waiting for Win7RTM prefetcher done.

[2010/10/03-19:38:24.734] Saving prefetcher data...

[2010/10/03-19:38:24.780] Failed to save prefetcher data (C:\Windows\prefetch\layout.ini) in cab archive (stage 1, error 0)

[2010/10/03-19:38:40.006] Saved prefetcher data from C:\Windows\prefetch\ReadyBoot\*.* in cab archive.

[2010/10/03-19:38:40.006] Saved prefetcher data from C:\Windows\prefetch\AgCx*.db in cab archive.

[2010/10/03-19:38:40.271] Saved prefetcher data from C:\Windows\system32\bootPrep_BASE+CSWITCH_2.ppf.newPlan in cab archive

[2010/10/03-19:38:40.287] Preparing system...

[2010/10/03-19:38:40.287] Launching attempt #1 to defragment disk...

[2010/10/03-19:38:59.803] ProcessIdleTasks returned.

[2010/10/03-19:38:59.803] Failed to determine if defrag worked - couldn't query registry key. Retrying.

[2010/10/03-19:38:59.803] Launching attempt #2 to defragment disk...

[2010/10/03-19:39:18.170] ProcessIdleTasks returned.

[2010/10/03-19:39:18.170] Failed to determine if defrag worked - couldn't query registry key. Retrying.

[2010/10/03-19:39:18.170] Launching attempt #3 to defragment disk...

[2010/10/03-19:39:33.523] ProcessIdleTasks returned.

[2010/10/03-19:39:33.523] Failed to determine if defrag worked - couldn't query registry key. Retrying.

[2010/10/03-19:39:33.523] Launching attempt #4 to defragment disk...

[2010/10/03-19:39:50.013] ProcessIdleTasks returned.

[2010/10/03-19:39:50.013] Failed to determine if defrag worked - couldn't query registry key. Retrying.

[2010/10/03-19:39:50.013] Launching attempt #5 to defragment disk...

[2010/10/03-19:40:04.505] ProcessIdleTasks returned.

[2010/10/03-19:40:04.505] Failed to determine if defrag worked - couldn't query registry key. Retrying.

[2010/10/03-19:40:04.505] Failed to defragment disk after 5 attempts.

[2010/10/03-19:40:04.505] PrepareSystem failed.

[2010/10/03-19:40:04.505] Stopping trace...

[2010/10/03-19:40:04.599] Couldn't find kernel logger in active logger list.

[2010/10/03-19:40:04.599] Couldn't find user-mode logger in active logger list.

[2010/10/03-19:40:04.599] Unregistering auto-run...

[2010/10/03-19:40:04.599] Completed auto-run change.

Edited by Kingben363

  • Author
couldn't query registry key

Set the value Enable in HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Dfrg\BootOptimize to Y

Thanks i will try it out, it was set to N and i changed it to Y. Going to try it again now, i share with you if it works or not =)

Looks like i still dosen't work, however i´m going to try on another computer later this day.

omg yes i have. I'm using a lite version of windows 7 made by me and i deleted the standar defragmenation tool becuase i'm using another better one. Crap! = /

Sorry about bothering you :(

Edited by Kingben363

Ok i will re-install windows 7 and then try it out again

Thanks for posting this :thumbup

Edited by Kingben363

Hi I have followed your instructions to speed up my boot time but I have come across a problem.

In my command prompt window I get the message " xbootmgr is not recognised as an internal or external command, operable program, or batch file. "

Can anyone shed any light on this and help me out please.

Thanks in advance, Brian.

you have to install the Windows Performance Toolkit first. Read the first sentence.

I did install the WPT. But I tried to do the speed up before rebooting ( Stupid I know ).

I have since rebooted and the problem has gone away. Thanks for your help.

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