See if you can get at them this way: Use Advanced Boot Options
to select Repair Your Computer and get to the System Recovery Options
. Then select the command prompt. Do the following:
chkdsk /r c:
chkdsk /r d:
chkdsk /r e:
chkdsk /r f:
.etc until you get the message that the volume could not be opened for direct access. For any drives that do not give the message: Windows has checked the file system and found no problems
run chkdsk again as above. In other words, if it says: Windows has made corrections to the file system
after running the disk check, run the disk check again.
I realize you may only have one disk show up in Windows explorer, but you may have more than one disk through recovery options. This is because the system creates a hidden boot partition (which will be C: in recovery), you may have a recovery partition for your PC that is hidden (which will be D: in recovery), and you will have your primary Windows partition (which may be E: in recovery). A custom PC will likely have at least C: and D: to scan.
If that does not work, please start your own thread and provide the problem and the steps you have taken thus far to resolve it. You will get more help if you start your own thread rather than causing confusion in an old thread.