Resolved W10 latest update. Now won't boot.

Morning Guys, and especially Arie. This site has been hugely helpful in the past.
I dual boot W7 pro and W10 home on my desktop, and I must admit I use W7 much more. I boot up W10 maybe once a week to keep it and me up and running. I downloaded the latest W10 OS/update about a month ago and it has been fine.
Yesterday I booted into W10 as usual and installed the latest update, October cumulative one I think it was.
Shut down, and it seemed to install OK.
The next time I Switched on the PC, W7 opened and works perfectly, but on restarting to W10 it would not allow boot.
I first get a W logo on a black screen and the moving circle of dots changes to "Scanning and repairing C drive" . It then goes back to the W Boot manager screen.
On selecting W10 second time the dots go to "Preparing auto repair" and then "Diagnosing your PC".
I then get a blue "Automatic repair" screen. I choose "advanced" not "shutdown" and then choose "Troubleshoot" and " advanced options"
"System restore" says no restore points have been created.
"Go back to previous version"says "We ran into a problem and won't be able to take you back to a previous system.
"System Image recovery" cannot find a system image on this PC .
"Start up repair" I think is back to the beginning, "Command prompt" I wouldn't know what to do. "Start up settings" I am wary of and have not tried.
"Reset PC" I have not tried as again I am afraid of losing some files.
So where do I go from here. I seem to have a self burnt W10 disc, as I purchased W10 from MS online, a year or two ago.
I hope a clean re-install won't be necessary, as I wouldn't know how to do it, without your help !
W7 is working perfectly so will not get PC withdrawal symptoms.
Can't tell you what version of W10 or what was the latest update as I can't get in.
Sorry for the long post but I have tried to answer your questions before they were asked,
Many thanks
David D

 

Thank you Arie, the cavalry has arrived !
Did as you suggest via advanced options, the W10 just went back to the screens as above, ie Scanning and repairing C drive, preparing auto repair and Diagnosing your PC etc
Screen shot of Easus partition manager, taken from W7 if it helps. (in w10 the OS seems to be C by default I think)

 

Thanks Arie,
I will look into the solutions you have suggested, but may not be able to give it my full attention for a few days. Will report back when I can,
David D

 

Just set up an external 2TB harddrive to put the total PC image on. Opened Macrium Reflect 7, ticked all the boxes I needed to, to Image all my drives/partitions to the External drive, it created a snapshot, and decided volume H "MFT corrupt-Error code=6. Please run 'chkdskH:/r".
Suppose I should do that as H is where the W10 OS is I think, refer to previous screen shot.
Running it now via Computer then rt click H drive then Tools and Check now. Quite slow ! Have restarted MR7 and now no H corrupt code error.

 

Rather than go into the Image creation immediately, I thought I would just see if W10 boot up was still a problem. Guess what, it booted up properly, just as it used to. So in effect running "chkdsk on H" seems to have resolved the problem. My two OS systems are now fine.
My next job is to run MR7 and make a full image of my PC on the external hard drive, on a regular basis, but as I presume that may take a few hours, it will have to wait till the weekend.
I have certainly learnt a lot today !
Thanks again Arie for your help and suggestions, I might not have got to where I am now, so quickly, if at all, without the Cavalry.
Very best wishes
David D

 

Hi David, I had a similar problem with the wife's computer. She rushed to tell me her comp wouldn't boot up (was doing what your one was).
I disconnected peripherals and went through the usual troubleshoot and repair procedures.
I used the 3 Start/Hard Shutdown which brought up the startup repair menus and after spending about an hour with many shut downs and starts - it fixed itself and started quite normally.
That was about 10 days ago and I haven't had any further panic calls from the wife yet.
All our comps are running 1809 and the wife plays a lot of games (Zuma is her fav) and I think she must have shut down incorrectly.
I have a problem with her as she has been diagnosed with early cognitive deficit disease. (Dementia).
She cannot remember sometimes what she did in the last few moments so I have to play it by ear when something goes wrong.
Our problem seemed so similar to yours and I still think that the many Starts and Shutdowns allowed W10 to sort itself out.