Installation files missing from file!

Hi there. For some reason I'm missing a couple of files from my installation directory. they are as follows:

CheckForUpdates_sldCheckForUpdates.exe

VCRedist_vcredist_x86.exe

VSTA_vsta_aide.exw

OfficeWeb_owc11.exe

swactwiz.exe

RemoteDebugger_remotedebugger.exe

Is there anywhere that I can get them, or could you tell me how to recover them?

SolidworksGeneral