In the Control Panel under Problem Reports>Problem History, there are numerous examples of "problems". 

Like "Internet Explorer not working (or not responding)"...18 times, and another one is for the Windows Driver Foundation (whatever that is) which says  "driver host process timeout " a total of 32 times. There are also two for "real downloader', and one each for the "network diagnostics framework" and "mdlresolversvc.exe

At one time last year there were  a good 300+ of these error messages on there, from various applications and processes, most of them unreported. Guess they drop off after a time.

Does anyone have suggestion about what causes these and how they can be mitigated. Otherwise, the computer seems to shrug them off and continues to operate.

Windows Vista Home Premium 32-bit SP2 and IE-9