I did sfc /scannow twice without errors, and registry cleaner in CCleaner returned nothing (I run it fairly often).
The pbsetup crash and pbsvc error 5 still happen. I run as admin on top of the account being an administrator.
Maybe I really am a punk.
Event Viewer shows Level: Error and Source: Application Error. The Details tab does not seem to show anything interesting that isn't in the Windows 'stopped responding' box, which is below:
Problem signature:
Problem Event Name: APPCRASH
Application Name: pbsetup.exe
Application Version: 0.0.0.0
Application Timestamp: 536d54a0
Fault Module Name: pbsetup.exe
Fault Module Version: 0.0.0.0
Fault Module Timestamp: 536d54a0
Exception Code: c0000005
Exception Offset: 000df400
OS Version: 6.1.7601.2.1.0.256.48
Locale ID: 3081
Additional Information 1: 4838
Additional Information 2: 48386290eb1edc500cf1e600771bc249
Additional Information 3: 5138
Additional Information 4: 51385cb9d776aea89cf477c72f707828