Hello! I have problems when making backup for data with Windows 7 Backup tool integrated in Windows 7. I make backup for data using one user (user is administrator) and all works fine without errors. I make backup to *.vhd file as separate disk with NTFS file system. Backup completed successfully. After this I logged in with other user (user is administrator too) and make backup with this user backup completed with error 0x81000037. What go wrong and how to solve this problem. I cannot find solution in the Internet. Whole Internet with this error description but what is correct solution for this problem? Hard disk is encrypted with Bitlocker. Thank You! Kind Regards!