Got a problem with system restore not functioning..at all. Went to do a disk cleanup of junk and old files and knew I could recover a lot of space by deleting old restore points. But when I opened the application it reported that there were no restore points. Since I have system protection turned on I thought it stange. When I selected to 'create a restore point now' the sreeen with creating a restore point came up and after about 8 or 9 min I got a timed out error 0x81000101 unable to create restore point please try again. For the last two weeks I have tried again and it's getting a little trying right now. I have turned off system protection on the disk I want a restore point on ( c:\ ) and then turned it back on to wipe out any leftover files from the system and that did not help. I ran the windows malicious file activity scan and it came up clean. I ran chkdsk /f in both windows and dos (safe mode command prompt only) with no errors reported I ran scannow with no problems detected. I ran KAV full scan with no threats found. I ran msconfig and disabled all items in startup and then, in services, hid the microsoft services and disabled all the rest and that did not help. I verified under services.msc that windows backup and volume shadow copy and all their dependancies were running and that did not help. I attempted to create a restore point in safe mode with windows running but in win7 pro x64 that is not an option. Just a waste of time but worth a try I searched the microsoft site to see if there was a fix for this and there is no help there. I removed ie9 from the computer ran a cleanup utility (asc) tried to create point no help. Re-installed ie9 ran full scan for any infections and none reported,tried again no help Disabled all browser add-ons save for the defaults. No help. Attempted to create a point with anti-virus turned off, No help The list goes on with all the checks I did comparing my backup computer settings to my main computer settings and will not bother to list these as the list would take up a dozen or more pages. I will say that any discrepancy was given attention to and either resolved or left alone. I am running the same OS on both machines but with different hardware and software so that is to be expected but the system functions are identical and Restore works perfectly on the backup unit. I would clone the system drive on the second computer and install on the main if it were not for the hard/software difference. It appears that the only option would be a format of c:\ and complete reinstall of everything since even though I have two complete full system backups, each from a different program, for redundancy, that would not help because they were created after the problem with system restore happened but I did not know about it then. I make incremental backups and every month or so start fresh so to conserve space by beginning with a new full and deleteing the old copies. Sort of like deleteing old restore points. Needless to say I will make differential backups fron now on. So if anyone took the time to read this book I would very much like to hear your thoughts on the subject.