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I was trying to change my Windows Explorer appearance using some things like this. This involves replacing system files such as explorer.exe and explorerframe.dll. When I was installing one theme I messed up somehow and disabled dwm.exe (the theme apparently required it). I just ignored the problem and started using the basic windows 7 theme instead (no transparency). Today I tried switching it to the Windows 98 style theme, and that made it so Windows explorer crashes when I try to start it up (except for the taskbar). I can't switch it back because I can't open explorer...is there some way that I can reset those files that are messed up? Thanks

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Did you try a System Restore to go back to before you did that? – Ƭᴇcʜιᴇ007 Dec 8 '11 at 2:48
    
@techie007 No, I didn't. – ahota Dec 8 '11 at 5:56
up vote 5 down vote accepted

hit win-r , then use that then use that to run cmd.exe.

You then can use sfc /scannow (with a install cd, or file caches on the system itself - if you have a i386 folder) to restore the default files.

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I managed to get explorer and my taskbar working now using that...however, Windows Aero seems to still be disabled. – ahota Dec 8 '11 at 2:00
    
superuser.com/questions/28685/… see this – Journeyman Geek Dec 8 '11 at 2:33
    
Still doesn't work, when I try an Aero theme I just get the basic Windows theme. – ahota Dec 8 '11 at 5:57

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