I am using windows 7 Home Premium (64-bit) version.After using for six months, it started showing defects so I tried to perform a Backup but I am not able to do that due to an error message which appears in front of me whenever I start the backup process.The error message which appears is “Unable to perform windows backup due to error "Windows Backup:
The task image is corrupt or has been tampered with. (0x80041321)". Do you have any idea about this error? What should I do to solve this error?