[Paulcajun]

I started out when using Calibre at 90 gig on my C drive. I took all of my books that I had on a 32 gig micro sd card and switched them to epub.
It used 33 gigs of memory, so far so good.
Then I formatted a 64 gig micro sd and tried to move just the repubs to the ed card. The computer slowed to a crawl and after leaving it on all night barely had moved any. I know from previous experience that epubs are small and move fast.
So I went to try it again last night figuring I had done something wrong.
The c drive was now done to 15 gig so I deleted about 10 gig of other stuff and started calibre up again to move the epubs to the 64 gig micro sd.
I looked this morning and only 4% had moved and next I tried to check the sd card to see how many books were on it, but Windows 7 explorer just kept searching all of my hard drives and never showed any.
I think I did something stupid and restarted the computer and now windows 7 won,t start. It just hangs at the bios, no errors it just sits there.
I'm assuming there is not enough free space on my C drive to let it start.
I have searched a bunch to see why Calibre would need so much space on a hard drive and have come up empty. During the a move use of Calibre I had nothing else running.
Any help with this would be appreciated.
Thank you