Hello, having tried SP1 cleanup method to free some space, got into various trouble after restart. 1stly the logon screen takes ~ 15minutes to proceed, after getting to desktop, various problems appear, all dealing with external USB devices, some not recognized at all, others give notifications about not working at full speed, others newly detected and installed, some unsuccessfully... Looking to devmgr, I see several USB devices with status problem, mainly Standard extended host PCI to USB adapter (not working), In the detail it is versioned 6.1.7601.17514, but build date 21.6.2006(!!). Dunno how extensive are the damages but at least there's something wrong with USB drivers, can't fix other way than restoring disk to previous state. To proof dism is the culprit I have ran cleanup second time after successful sytem restore, with the exactly same result. I'd like to have more space and working drivers. Any explanation for this behavious?