I get frequent mails about this common problem in Windows Vista. Sometimes Windows Vista users face a strange problem, when:
- The "Compatibility" tab is missing in Properties window:
- System Restore doesn't open and shows following error message:
- Windows shows frequent Error Reporting messages.
- You face Performance Monitor, Inkball and Winamp related problems.
All these problems occur when 2 system files "wer.dll" and "Faultrep.dll" are missing from "%windir%\System32" folder. Either they have been deleted by mistake or were not installed by Windows because of removing some Windows components from the setup.
So the solution of this problem is very simple. Just download following ZIP file, extract it and you'll get both system files. Now copy the files to "%windir%\System32" folder. If you get overwrite prompt message, select NO.
Download Missing System Files (Mirror)
Once you copy the files to "System32" folder, your problem will be solved and you'll be able to get "Compatibility" tab back:
Also System Restore will work without any problem:
This article was posted in Troubleshooting, Windows Vista.
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Jeet Chowdhury
So, How You Get TweakUI In Vista Is It XP Ver? Running In Vista With Compatible Mode?
Jeet Chowdhury
hey VG please answer really need a tweakui in vista.
VG
Yep. TweakUI can be used in compatibility mode under Vista.
Jeet Chowdhury
and is it working? which version u using the ver that need sp1 of xp or first ver of tweakui.
and and is xp x64 tweakui work on vista x64????
VG
I'm using the XP SP1 version and its working perfectly. I have not tried with x64 version.
Jeet Chowdhury
thanks VG i will install vista x64 and will reply u soon.
Jeet Chowdhury
its working but not all the feture.
Moneybankz
Thanks Man. I Was Gonna Reinstall To See if It Would Come Back. Life Saver Mate
Mark Schneider
Another reason you might not see the Compatibility tab is if the "Remove Program Compatibility Property Page" policy setting is enabled.
To check that setting, open the Local Group Policy Editor (gpedit.msc) and navigate to Computer Configuration -> Administrative Templates -> Windows Components -> Application Compatibility. Then double-click the "Remove Program Compatibility Property Page" setting. Usually setting it to "Not Configured" is sufficient, but you also might try setting it to "Disabled".