Using XP.

My computer (not this one) is caught in a loop and I cannot get out.

On startup, it started Checking File System on C, though I do not recall having asked it to do that. I tried ctrl-alt-delete and got no response. I shut it off and on re-boot, it started checking file system on C and Checkdisk. I let it run until it said 100 percent complete, but there no change to the image on my monitor. I shut it off and re-booted. Again, it started Checking File system on C and Checkdisk.

Whatever it is doing, I do not want it to do that.

How do I get out of his loop?