Windows 7 Backup fails, error code 0x8100019

Ok, I've been researching solutions for issues with windows 7 backup for weeks now and have had no luck. My VSS service is running fine, and everything was backing up fine til a short while ago, and has been failing since. I have been backing up to a network share on my file server. My roommate has been having the same issue for some time now, however he was attempting to do this with an external hard drive. Same error of 0x8100019. I've tried everything I can think of and I've had no leads thus far. Any pointers on this would be helpful.

Back up fails

Same problem, it actually backed up the first time I used the program that is on WIN7. Now it gives me the blue screen. I have deleted the file it makes and start over, same thing happens. I have tried to change the drive from basic to dynamic it won't allow me, reason is I have a laptop. But I am more confused since it worked the FIRST time and now it's not allowing me to finish! It's actually frustrating cause I have already lost everything on my hard drive before and really don't want it to happen again. I wish I had the answer but I'm still searching.