HELP!!! NEED tutiorials for backup windows 7 after error code 0x8078015B

Question

Please help I need a tutorial to backup windows 7 64bit after error code 0x8078015B.

Answer 1

Is this over the network? If yes, then try these steps :
1. Click Start. Enter “gpedit.msc” in the Start Search box. 
2. Locate to Computer Configuration\Windows Settings\Security Settings\Local Policies\Security
Options\
3. In the right pane, double-click on “Network security: LAN Manager authentication level”.
4. Change the level to “Send LM & NTLM - use NTLMv2 session security if negotiated”.
Please check if the share folder can be accessed with UNC “\\computername\folder
or \\IPAddress\folder”.
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