From DIGITUS - Wiki
Drivers of devices already connected with the PC are saved in a backup file by the Windows operating system. Possibly, this file, which includes all of those "known" devices, is corrupted. This could have happened by a previous installation of a driver related to another device which failed or due to information saved in an incorrect way to the file. Thus, in such a case this file should be deleted manually.
- This problem affects all Windows operating systems starting from Windows 2000!
As soon as you connect a new device with your computer or restart the PC the Windows operating system will rebuild this file!
If you use Vista you might need additional user rights to delete INFCACHE.1. To do this, right-click this file, then select "Security" or "Properties". Use the "Security" tab to allocate the respective rights.
The INFCACHE.1 is usually located in the Windows directory:
- Windows 7: %systemroot%\System32\DriverStore
Though a restart is not crucial you should finally restart your computer. We also recommend you to remove hidden devices.
The file / folder is hidden
- Please configure the folder views via Folder Options!