thanks buddy, but sfc.exe /scannow didn't work and i faced to another error! (windows resource protection could not start the repair service).
finally i found the solution:
- If you are receiving the "Low Registry Space" error, set the Registry Size Limit to "unlimited":
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control
Key: RegistrySizeLimit
Type: REG_DWORD
Value: 0xffffff (4294967295)
- Reboot
- As a Administrator open a Command Prompt and run "SFC /SCANNOW". The command should complete successfully and if any errors were found, they should be corrected.
follow the steps and enjoy!