Original post : 0x80042302 - Fix for Windows XP, Vista, 7, 8, 8.1.
Restore system files and settings System Restore does not appear to be functioning correctly on this system. A Volume Shadow Copy Service component encountered an unexpected error. Check the Application event log for more information. (0x80042302) System Restore can help fix problems that might be making your computer run slowly or stop responding. System Restore does not affect any of your documents, pictures, or other personal data. Recently installed programs and drivers might be uninstalled. Is this process reversible?
services.msc
msconfig.exe
msconfig
sfc
cmd
sfc /scannow