Sluggish PCs are commonly caused programs running in the background, which in some cases are started automatically when Windows starts up.

Sometimes these programs are useful but quite often, however, are not needed, and some many cases may be disgusted as trojans, spywares, malwares and even viruses.

The pages below provide a guide on the usefulness these background tasks, Windows 98 / 2000 / XP / Vista / 7 services, and Windows Startups, and removal procedures when recommended.

Common Windows Processes: A - B - C - D - E - F - G - H - I - J - K - L - M - N - O - P - Q - R - S - T - U - V - W - X - Y - Z

Common Windows Services: A - B - C - D - E - F - G - H - I - J - K - L - M - N - O - P - Q - R - S - T - U - V - W - X - Y - Z

Common Third Party Processes: 0-A - B - C - D - E - F - G - H - I - J - K - L - M - N - O - P - Q - R - S - T - U - V - W - X - Y - Z

O

 
omniscient.exe onetouch.exe onetouchmon.exe onspeedcore.exe  ooccctrl.exe
opscheduler.exe optimize(2).exe optimize(3).exe optimize(4).exe optimize.exe
opware32.exe  opwarese2.exe opwarese4.exe oscheck.exe osd.exe
oasclnt.exe odthdjnc.exe  oemrun.exeoutlook32.exe outpost.exe