Windows 10-upgrade failure leading to non-responsive rollback. Turned off the computer and...

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Jimmy Quaresmini

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Hello!


Some evenings ago I looked forward to my Windows 10-upgrade since I had fixed corruptions I thought had been the reason for prior failures installing this upgrade to Windows 10. I had had bluescreens with 2 different measseges. 1st one I cannot recall(wrote it down on my win8.1) led to windows giving an error-code in Windows update that got me thinking I had a corruption in windows update on some file and indeed found that with sfc /scannow. I forgot which file it was exactly, but "AMD64/prncacla.inf" I believe was the file that was corrupt. I first copied such a file from my Win8.1 pro-DVD I had to the location I thought would be right but got the same problem again, so I used dism to fix the corruption. Subsequent sfc /scannow showed no errors. Hence why I looked forward to this upgrade after many failed attempts(taking 5 hours each time in preparation).

I failed in the upgrade at about the same place as the previous times with the 2nd blue screen saying something like page fault in a non-paging area. I believe that may actually say something about corruption due to previous issues I've had in win8.1, but obviously there could be other problems too. This bluescreen came about 1% into the progress where you can see a circle of the progress after it has restarted. It is copying files at that point and was maybe just 5% into the copying, tops. 2% overall progress is the farthest I've come in 6-7 upgrade-attempts to Windows10...

The blue screen lead to a non-responsive rollback. Meaning that I saw no harddrive-activity for enough time for me to figure that I should turn it off and let it resume upon restart. I know it's risky and not advisable, but I have also seen people fix it this way.


So, I turned off the computer and now I can't get back to Win8.1. When it restarted, it got to a blackscreen with the cursor and then it does not proceed. Harddrive-activity stops.


I have used my Win8.1 pro DVD to try to auto-repair actually 2 "OS" that I see now: Win8.1 and Win rollback(which is listed as an OS) to no avail. For at least Win 8.1 it says "OS mismatch" as the reason why it could not auto fix it. Neither can I restart either of the OS's from the repair-menu in the sense that I just get the black screen with the cursor again on both. Neither can I use windows restore as it says I have no restore points although I do from this spring when I had issues and made at least one.

Also, I cannot see the "startup options" under "advanced" in the repair-part(recover menu) on the DVD, so I have not been able to get into safe mode.

I have run "bootrec /scanos" which said no OS was installed. I saw some advice on how to attempt to fix that(writing a new master boot record basically), but if I were to do that, what would happen to this "Windows Rollback" that is listed as an "OS"? I specifically want you to explain also what this "Windows Rollback OS" is actually. If I can go ahead and sort of ignore this rollback OS, I can attempt the fixes with bootrec that writes new MBR, or copy back previous register-parts from the 25th that my computer has as a backup that a female experts in one of your forums recommended to another person with a problem that was similar, although not exactly the same.


or what do you advice me to do?


My laptop computer that has these issues is an HP from about 2008-09. Has an AMD64, 4 GB RAM, 500 GB HDD. The CPU has had some problems with overheating and it's a mess to clean where the CPU is, but I have recently cleared its outside vents with compressed air. The CPU in the past few years have also bluescreened with a message that I think meant that the Level2-cache did not respond fast enough, which I have read was also an overheating-related issue.

Best Regards and thanks in advance.

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