When I first downloaded EasyBCD to boot into windows 8.1, i didn't understand it well, it worked, but when it said it needed to restart during setup, I kept restarting cause it wouldn't boot into Windows Boot Manager, eventually it said "Recovering D Drive," i panicked and I got rid of my 8.1 partition, and I uninstalled easybcd, but when I tried to shrink my C Drive, it said something similar to "Disk may be corrupted, use chkdsk to resolve the issue" and when i did, it said something like "disk is locked, cannot chkdsk," and also, everytime i restart my computer, it boots into a dual boot menu that says "windows 10" and "windows 8.1" even though I uninstalled EasyBCD, how do I fix this issue?