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

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saap.exe safe-share.exe  sagent2.exe  saie1101.exe sais.exe
salm.exe SandIcon.Exe saservice.exe saue1101.exe save.exe
savenow.exe  savroam.exe sbc.exe sbdrvdet.exe sbmntr.exe
sbserv.exe  scanregw.exe schedhlp.exe  schsvr.exe scit.exe 
scvhost.exe search.exe  searchindexer.exe SearchProtection.exe searchupdate.exe 
secure.exe securityiguard.exe  SeekmoSA.exe serbw.exe server(2).exe
server(3).exe server.exe services.exe services1.exe services2.exe 
setpoint.exe setup(1).exe setup(2).exe  setup.exe setupx.exe
sfgdulkp.exe sfproxy.exe  sginst.exe  SGPro.exe sgtray.exe
shellmon.exe  shmgrate.exe  shopinst.exe showwnd.exe shstat.exe
shwiconem.exe sisusbrg.exe siteadv.exe sk9910dm.exe skype.exe 
skytel.exe  slipcore.exe  sm56hlpr.exe smax4pnp.exe smoothview.exe
smpsys.exe  sndmon.exe  sndsrvc.exe  snm.exe  soffice.exe 
soundman.exe speeditup.exe  splwow64.exe  spmgr.exe  spooisv.exe 
sprtcmd.exe spyaxe.exe  spyfalcon.exe  spysweeper.exe  srmclean.exe 
ssaad.exe  ssbkgdupdate.exe  sscrun.exe ssekxpj.exe  ssk.exe
ssonsvr.exe stinger.exe stopsignav.exe  stsystra.exe sttray.exe
sulfnbk.exe support(1).exe  support.exe SurfStream.exe svchst.exe 
svcproc.exe  svrrun.exe  swdoctor.exe switcher.exe  symlcsvc.exe
symwsc.exe sync.exe  syncservicesbasics.exe syntpenh.exe sys_alert.exe
systemidleprocess.exe  systra.exe sysupd.exe sysweb.exe