[POSReady 2009 updates ported to Windows XP SP3 ENU]

Is KB4486463 safe for a computer not running a SSE2 CPU?

[POSReady 2009 updates ported to Windows XP SP3 ENU]

There has to be more updates not working well with SSE CPUs, I get Explorer.exe error related to gdiplus.dll and the computer isn't useable. :/

Nevermind, even though I unchecked every update carefully they installed. Removed, everything back to normal. 

[Windows XP - Altered the registry incorrectly]

By mistake I didn't notice that the backslash was missing:

Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINESYSTEMWPAPosReady]
"Installed"=dword:00000001

I added this to the registry, everything works fine, POSReady worked fine after I corrected the error. I can find no sign of it in the registry, what actually happens when you add something like this to the Windows registry? 

[Browser for XP - Don't have SSE2]

I have an AMD CPU that supports only SSE not SSE2, which browser should I use? 

[POSReady 2009 updates ported to Windows XP SP3 ENU]

What a great thread, it's been so helpful!

I did a clean install of Windows XP, I have removed all the updates mentioned by ED_Sln, I'm not on a SSE2 CPU.

Updates not requiring SSE2, replaced by updates requiring SSE2: KB4087398, KB4463361. Is it safe to install these from the update catalog?

I didn't see any KB4487085-v2 update, only KB4487085, didn't install it, does it work without SSE2?

KB4493563 mentioned in another post, is this safe?