If you're somewhat tech savvy, you may periodically look into the long list of processes that is running on your Windows PC. Google them by their "image name" or the name of the executable that's running and you often can find entries in windows process databases like
this one,
this one,
this one,
this one, etc.
that describe the process as
It is a legitimate program, but it isn't required.
After receiving my replacement eo from TabletKiosk recently to correct an issue
with the usability of the TouchStyk I found that it had a whole bunch of processes running that I didn't recognize. One of them, igfxpers.exe, was described as "legitimate, but not required." So in an effort to reclaim resources that "unnecessary" background programs are using, I removed the string entry for it it from my registry's
\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
key without much thought. Only after about half a day, I discovered that it really was doing something useful and should be running.