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
A Volume Shadow Copy Service component encountered an
unexpected error. Check the Application event log for more
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?