Some of you guys might’ve ran through this problem when manually updating your drivers for your adapter, probably wireless. When I browsed for the driver (inf) after extracting/unzipping the file, I get “ACCESS DENIED”. I was using a linksys wireless adapter.
Thank goodness I found the culprit behind it! Windows 7! It appeared that Windows7 automatically decrypted the folders after it was extracted. Try this simple fix, it worked for me.
1. Unzip the downloaded driver file. Right click the extracted driver folder and click on properties. Make sure read only is not selected.
2. Click advance and make sure to uncheck Encrypt contents to secure data. Click OK all your way out!
So that’s pretty much it, easy and quick! Try to manually update your drivers again.