Windows 10 Upgrade error - C0000005

[katz]

I have an HP laptop/ 8.1 in the shop. Clients wants (and tried themselves first) to upgrade to Windows 10. I can click on the upgrade icon, runs for maybe 1/2 hour, then fails - I am getting an error code of C0000005.

Ran tweaking tool in an attempt to repair corrupted files, after completion still no update sucess. Tried refreshing files, (Win 8 tool) file refresh will not run.

I'm thinking of reinstalling Win 8, but I want to do that as a last ditch effort, as there are several user programs on here that I don't want to have to go through setting up again unless absolutely necessary. Google shows little helpful info. on error C0000005.

Anyone run across this one before?

 

[glennd]

Anyone run across this one before?

I got that last week. After two days I couldn't resolve it. Told customer it'll be a N&P job. She decided Win8 is ok for now.

 

[katz]

This pc turned out to be a mess right from the start. Don't know if the repeated upgrade attempts by the client hosed the system, but there were random HP popups that "HP Messenger" service/ other has stopped working. System restore/refresh would not work. Tweaking tool would not fix it. Malware scans came back clean...

In the end, I backed up data & did a factory recovery. After the recovery, upon reboot the pc popped up with a Win 10 upgrade offer. I clicked yes to that, 3 - 4 hours later it was complete, all seems to be running well.

(FYI - turn off sleep mode/hard drive sleep or the system will keep shutting down during the upgrade) Most of you know that, just wanted to mention it anyway.

I haven't had a chance to poke around the system that much yet, but it seems like just a lot of eye candy to me. The little I have used it, it doesn't seem any snappier to me...

 

[Porthos]

In the end, I backed up data & did a factory recovery. After the recovery, upon reboot the pc popped up with a Win 10 upgrade offer. I clicked yes to that, 3 - 4 hours later it was complete, all seems to be running well.

At that point I would have done a clean install of 10. (not an upgrade) I would have backed the SWSETUP folder from it when I backed up user data just in case I needed some win 8 drivers.