Hi BDEHD,
**Step 1:**You may follow the steps mentioned in the article below
Error code 0x81000031 occur when you try to back up files by using the Backup and Restore Wizard on a Windows 7-based computer
http://support.microsoft.com/kb/975692
If the issue persists,
Step 2: You may follow the steps provided in the link below by PhilbertHFZ, post dated Friday, January 01, 2010 4:16 AM
Yes, you are right in saying BitLocker is not available inWindows Home Premium. This feature is available only on Ultimate and Enterprise Editions of Windows 7.
System Error message regarding Bit locker may have generated because this version of Windows 7 doesn’t support it.
Thanks and Regards:
Ajay K
Microsoft Answers Support Engineer
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