Pavilion x360 windows 10 won't boot up

[Observeeverymov]

I recently came into possession of a pavilion x360 touchscreen laptop. I was given it by a family member who had used it but since upgraded. He had reset it to factory stock windows 10 prior to gifting it to me. I used it for approximately 3 days or so and then one day I was prompted with a notification for a Windows system update. I started the update and since it was going to take over an hour, I decided to go about my day with other chores. I got busy and I wasn't able to return to the computer until the following day. 

     The following day I found the laptop off, so I turned it on and waited for windows to boot up. It unfortunately didn't boot up but instead got stuck in a loop on a screen which said undoing changes made to your computer. I researched this and came to the conclusion that the system update was unsuccessful and I had a problem. Upon further research I found information all pointing to a system restore as a possible fix. 

    I went through the motions and each time I try I am given a screen saying : restoration incomplete. The restoration did not complete. Please select one of the following buttons: save log, details, or retry. Retry button will restart the computer and give me the exact same result each time. The details button has a window with a bunch of code and commands all of which I cannot provide here due to the amount of time it would take to type it out. It looks pretty typical until it gets to :

"Found fail message in the C:\system.sav\logs\BB\P00QG0B2"

Followed by some more text, then: 

" [FAILURE FLAG]

[PASS2_BBVCLEAN][PIN_ERROR_MSG][ChkError.cmd] Found C:\SYSTEM.SAV\FAILURE.FLG

Result=FAILED

C:\SWSetup\APP\Security\McAfee\McAfeeMLS_QQG0B2\15.3.3074\FAILURE.FLG

P00QGO-B2K McAfeeMLS"

Followed by more error messages. This stood out as well: " Refer to the following file[s] if exists to see detail. C:\CTOERROR.flg, C:\System.sav\*FAILURE.flg, or C:\system.sav\Logs\AllFailure.log

This is for customer image...

Trigger CTO panic...

This is Recovery image...

[ChkError.cmd] has completed..."

Then more error messages. If I hit retry the cmd.exe window says " the system cannot find the drive specified" about 6 times then it says "  Access is denied"  I appreciate some help with this matter because I really feel as though I'm in above my head and I need to get this taken care of. 

Thank you

[Betty0610]

@Observeeverymov

Welcome to the HP Support Community.

If you do not have much data on the Computer, we may need to do a system reset: https://support.hp.com/my-en/document/c04742289.

If there's data on it, we suggest you to boot into safe mode and attempt a backup before reset: https://support.hp.com/us-en/document/c03439317

Let me know if this helps.

If the information I've provided was helpful, give us some reinforcement by clicking the Accepted Solution button, that'll help us and others see that we've got the answers!

Thanks!

Have a great day!