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I updated my IE9 from IE8, and after I reboot my machine and try to access my computer drive, I get this error message whenever I try to double click c:\ drive or other drives:

This file does not have a program associated with it for performing this action. Please install a program or, if one is already installed, create an association in the Default Programs control panel

but other than that, everything seems to be working fine. Its very strange; any help?

(I am using Windows 7 32-bit.)

update: here are the contents of HKEY_CLASSES_ROOT\Directory.

update 2: here are the contents of HKEY_CLASSES_ROOT\folder.

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Could you run reg query HKCR\Drive /s | clip in Command Prompt and paste the result here? Also, does this happen with file folders, or only drives? – grawity Mar 25 '11 at 15:53
it happends with folders and drives too – Nick Kahn Mar 30 '11 at 1:35
can you elobrate more how do you want me to run query hkcr ? – Nick Kahn Mar 30 '11 at 1:36
@Abu: 1) I see. In that case, reg query HKCR\Directory /s | clip would be more useful... 2) Start -> Accessories -> Command Prompt; then copy/paste the reg ... thing and press Enter. Because of | clip, the results will automatically go to clipboard and can be pasted. – grawity Mar 30 '11 at 5:39
thanks, i updated my question. – Nick Kahn Mar 30 '11 at 15:03

Just finished solving this exact same issue by comparing notes with the .reg files available for download here:

If you're paranoid like me just go through each entry until you find the differences and fix those accordingly.

share|improve this answer
.reg files are text files. You could just diff the two files to see where the differences are as merge at your discretion. – Lèse majesté Apr 14 '12 at 6:37

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