I installed windows 10 technical preview yesterday
. I found a problem with system restore. It goes through everything normally but after it reboots I get an error. In the details it says:
System restore failed to extract the original copy of the directory from the restore point.
Source: %ProgramFiles%\WindowsApps
Destination: Appxstaging
An unspecified error occurred during system restore. (0x80070057)
How do I fix this?????????????????

System restore failed to extract the original copy of the directory from the restore point.
Source: %ProgramFiles%\WindowsApps
Destination: Appxstaging
An unspecified error occurred during system restore. (0x80070057)
How do I fix this?????????????????