When I start System Information (msinfo32.msc) it gives me, in the info panel, the following message: Can't collect information Cannot access the Windows Management Information software. Windows Mangement files might be moved or missing. I didn't remove anything, I tried a System Restore (unfortunately to a Checkpoint when the problem was already there), then a System File Checker (SFC /SCANNOW), then check if the WMI service is not disabled (it is automatically started, the default). In Microsoft Mangement Console, under Services and Application, I have WMI Control. R-click, properties, and: Failed to connect to <local computer> because "Interface: class not registered" The MSInfo problem is not so big, but I fear there may be related troubles to this. So: HELP, PLZ!