Pc Boot error?

windows is not very good at recognising BAD BLOCKS on a disk. It still has OLD code for when we used Flopy drives that roughly goes like this, when a sector isnt responding well, keep on trying until it does. This is because back in the 90's SPACE was at a premium. These days disks have all that built in they just need some help when a drive has a block of sectors becoming more unreliable. You have two choices. Delete the C: drive partition(so it becomes free space) then create two partitions in that space, one that occupies the space that the bad area might cover eg the first 50gb then the 2nd one is the one you need for the c: drive. Then install windows on the 2nd partition and leave the first one alone altogether. Your pc should now be more reliable. Option 2 use a proper disk diagnostics to FULL ERASE the disk, where it will DECLARE BAD BLOCKS AS FULLY BAD(unusuable) then that should make the disk more reliable. It is wholly acceptable for any drive to have bad blocks, and most modern disks already have around 255 SPARE blocks that can be REALLOCATED and RENUMBERED to replace duff ones. After that the disk should be more reliable.

Well this is supposed to work but I haven't had to do it yet. Supposedly if you reboot the computer several times it will automatically load Win 10 in the "safe" mode. However, I wouldn't do what you are doing in "shutting down" the pc. What I would do is hit the reset button on the computer if you have one, or simply depress the power button part way to see if that will cause a reboot. If it does reboot it several time in this manner to see if you can get it into the Safe Mode. If you can get it there, then you should be able to get into the Control Panel, and then into System Recovery. If you can get into System Recovery you can choose either the Restore (to an earlier date) or a full Recovery action. Give it a shot. All it will cost you is a little time. Hope this helps!