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“No such interface supported” Error after Upgrading to Windows 7 SP1

No such interface supported

After upgrading my Windows 7 Ultimate with SP1 I could not open Windows Explorer – every time I got this error message: “No such interface supported”.
I could not open Control Panel | Add Remove Programs to remove the SP1 update… so I goggled for this upgrade issue and I found that re-registering all .dll files would fix the problem.  In the same topic someone mentioned to use only this command to re-register the .dll files (much easier this way)

  1. Open Command Prompt (as Administrator)
  2. Type CD and hit enter (to go to C:)
  3. Type DIR *.dll /s /b > regdll.bat and hit enter (this will create the regdll.bat file)
  4. Type FOR /R C: %G IN (*.dll) DO “%systemroot%system32regsvr32.exe” /s “%G”


One hour later it finished re-registering all .dll files and problem was solved (it threw more than 100 error messages during the process – just ignore them)
Someone mentioned that they solved the problem by assigning full control to Users in HKEY_CLASSES_ROOT. Open Registry Editor, right click on the HKEY_CLASSES_ROOT and click on  Permissions. Now select Users and tick the Full Access box.

1 thought on ““No such interface supported” Error after Upgrading to Windows 7 SP1

  1. I was getting the same “No such interface supported” error when trying to launch Google Chrome pinned to the taskbar. I’d previously tried reregistering DLLs to no avail but assigning full control to Users in HKEY_CLASSES_ROOT did the trick. I’d love to know why this works but thank you very much for the post.

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