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Every few days of usage this will randomly occur on my windows 7 pro 64-bit pc:

  1. All explorer entries in the task bar will revert to the generic non-icon.
  2. If I try to run anything from start->run, such as cmd, environment variables get cleared. Other apps will act nutty when launched sometimes as well.

This is the fix that I have to perform to get things working again. I have to run the batch directly form explorer, since running from start->run will fail because of the mentioned variable issue:

cd /d %userprofile%\AppData\Local
attrib -h iconcache.db
taskkill /f /im explorer.exe
del iconcache.db
start %windir%\explorer.exe

Why does this keep happening? I run many apps at once but I have 16 gigs of ram.

share|improve this question
How often are you running Windows Updates and do you have Itunes installed? – Dave Jul 18 '12 at 13:49
Also, when the icons are not working as desired, does the application still run when clicked or do you lose association as well? – Dave Jul 18 '12 at 14:00
No itunes. Windows updates semi-frequent and are handled by company deployment. The taskbar icons still resolve to explorer. – wtjones Jul 18 '12 at 14:52

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