ultraDM62
mardi 18 décembre 2007 à 22:25
j'ai trouvé ça, cela à l'air crédible :

Why does Windows Vista fail to detect or install drivers for an external hard drive?
Answer
Problem: During the initial installation of an external hard drive, Windows Vista does not locate or install drivers for the external hard drive. Windows Vista might report that there is “no driver found for you device” and/or will not display the pre-installed Vista OEM drivers. Even by manually selecting the driver, you will still get the “no driver found…” error. Cause: This is most likely caused by a corrupted INFCACHE.1 file. This file stores the location of drivers and their INF files. This file is hidden, has restricted access, and can be found in “c:\windows\inf”. Resolution: Delete the INFCACHE.1 file and it will force Windows to rebuild the INFCACHE.1 file the next time Windows searches for drivers. To delete this file, you have to set the security permissions of it to allow Full Control for the User Group Administrators or full control for your user account. Please follow the directions below:
1. Open a Windows Explorer window by right clicking on Start and then clicking on Explore.
2. In the address bar, type C:\windows\inf and press Enter.
3. Find and then right click on the file named INFCACHE.1.
4. Select Properties.
5. Click on the Security tab.
6. Click on Edit to edit the permissions of the file.
7. Click on Add to add User Groups.
8. Type Administrators in the User Groups field and click on OK.
9. Set Administrators to Full Control and click on OK.
10. Move or delete the file INFCACHE.1.
11. Reinstall a device to force Windows to rebuild the INFCACHE.1 file (DO NOT reinstall the same external hard drive that you were having issues detecting before).
This detection issue can happen several times in a row, but repeat the steps 1-11 and try again until this works.
URL corrigée - solution 7