I'm now working on my wife's laptop and it seems to have a lot of issues. Originally the system had Win7, this was upgraded to Win8, then Win8.1 and Win10 (all x64). The latest update was several months ago. Recently I noticed that Acronis True Image was not creating backups and the system was running rather slow. Possibly my best choice is to perform a clean install of Win10.
I installed TC-Windows Repair and stated performing the steps.
The first real issue I encountered was with CHKDSK. The HD has several partitions (see the image). When I first got the system I partitioned the drive to separate the data from the OS and assigned the drive letter "A". Thus when I got to the step to run CHKDSK I selected all three partitions (A, C and D) (the D partition is the original Lenovo recovery partition, this I should just remove, I will never use it. It was about 2200 hours when I rebooted the system to let CHKDSK run. The next day at 1000 hours CHKDSK was still processing the C drive but stated it was 100% complete, so I let it run. At 1400 hours it was still running and my wife was bugging me to use the PC so I forced a power off, removed the battery, pressed the Power on button, installed the battery and booted up the system. Later that night about 2200 hours I setup to run CHKDSK on the C partition and let it run (BTW CHKDSK /R was used for all runs). This time the next day it had successfully run.
I then worked my way up to the SFC and when it ran it stated that files were corrupt but could not be fixed.
I then ran DISM and it failed "The restore operation failed. Either the repair source was not found or the component store cannot be repaired."
At this point I was a bit lost and just left it. Tonight I tried again and again it failed. I read the page at
https://technet.microsoft.com/en-us/library/hh825020.aspx On my desktop I shared out C:\Windows and on the laptop I access this as the Z drive then ran DISM with the following (CMD window as admin).
Dism /Online /Cleanup-Image /RestoreHealth /Source:z: /LimitAccess
Again it failed, the DISM log is attached. Tis late and I'm going to bed...