最近电脑有好几个进程都出现了双进程,不知道为什么?

目前我电脑任务管理器里有的进程是:
360tray.exe
alg.exe
ati2evxx.exe
ati2evxx.exe
CCenter.exe
CCenter.exe
CDAC11BA.EXE
csrss.exe
ctfmon.exe
explorer.exe
iexplore.exe
iexplore.exe
knownsvr.exe
lass.exe
QQ.exe
QQ.exe
QQ.exe
QQ.exe
QQ.exe
QQ.exe
RavMonD.exe
RavTask.exe
RavTask.exe
RfwSrv.exe
RsMain.exe
rsnetsvr.exe
rssafety.exe
Rstray.exe
RStray.exe
Rstray.exe
ScanFrm.exe
services.exe
smss.exe
spoolsv.exe
svchost.exe
svchost.exe
svchost.exe
svchost.exe
svchost.exe
System
System Idle Process
taskmgr.exe
Thunder5.exe
TXPlatform.exe
wdfmgr.exe
winlogon.exe
各位能帮我看下是什么问题吗?

用户系统信息:Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 2.0.50727)