C:\WINDOWS\web\svhost.exe Windows cannot access the specified device, path, or file. You may not have the appropriate persmissions to access the item. I'm using Windows XP and have tried a registry cleaner. This error doesn't seem to effect much except the deletion of certain files, for which I'm using http://www.emptyloop.com/unlocker/. Looking around on the net it seems tricky thing to solve. The problem started when I had both Bitnami and Aquia Drupal Stack installed and continues after removing Bitnami.