Backup error with windows 7 32-bit

Hi !
I want to backup my C: drive. But I get an error message each time I try to do so. I get this at the 5% mark everytime. The error code is EBAB03F1 and says that, the system cannot find the file specified. My pc is running Windows7 Home Premium 32-bit version. The capacity is 1TB and the backup drive’s capacity is around 1.5TB. I’m counting on you guys. Please help me with this issue.
Thanks a lot in advance.
