HOW TO: know virus in my computer

Sometimes we don't know or not realize virus was effected our computers. This is the way how to knows:

1. PC operate slow than before
-- update AV, run in safemode, clear your temp file & internet file and scan your HDD
2. Download somethings, when you click on the file, nothing happen.
-- update AV, run in safemode, clear your temp file & internet file and scan your HDD
3. Task manager cannot use
-- download Regwash, thick task manager box and click button, done in 2 second
4. Folder option gone / missing
-- download Regwash, thick folder option box and click button, done in 2 second
5. Run any applications but cannot or open for a while then close suddenly
-- update AV, run in safemode, clear your temp file & internet file and scan your HDD
-- scan with Regcure
6. Pop up show up while surfing
-- update AV, run in safemode, clear your temp file & internet file and scan your HDD
-- scan your HDD with anti-spyware application (Spybot - Search & Destroy)
7. Search result show up different what you try to find or porno advertise come out
-- update AV, run in safemode, clear your temp file & internet file and scan your HDD
-- scan your HDD with anti-spyware application (Spybot - Search & Destroy)
8. Search somethings suddenly result show using different search engine
-- update AV, run in safemode, clear your temp file & internet file and scan your HDD
-- scan your HDD with anti-spyware application (Spybot - Search & Destroy)
9. Antivirus application doesn't work in startup
-- run in safemode and scan your HDD using Portable Antivirus
10. At start up folder have weird application like "empty" which we can click on it
-- update AV, run in safemode, clear your temp file & internet file and scan your HDD
11. Msconfig > startup list have weird file example o0wd3572
-- run in safemode, disable the files and try delete it manualy
12. Weird error msg come out or not from ms-windows
-- update AV, run in safemode, clear your temp file & internet file and scan your HDD
-- scan your HDD with anti-spyware application (Spybot - Search & Destroy)
-- scan with Regcure
13. Cannot use taskmanager, msconfig, regedit
-- download Regwash, thick folder option, task manager and regedit box and click button, done in 2 second
14. Your pc shutdown suddenly
-- update AV, run in safemode, clear your temp file & internet file and scan your HDD
-- scan your HDD with anti-spyware application (Spybot - Search & Destroy)
-- scan with Regcure
15. Cannot logon to windows account, it's shutdown it's self after logon windows
-- run in safemode, if can try scan your HDD with AV, or else while you click on account, hold shift button till it's finish loading
16. Loading too long for any applications
-- update AV, run in safemode, clear your temp file & internet file and scan your HDD
-- scan your HDD with anti-spyware application (Spybot - Search & Destroy)
-- scan with Regcure
17. It's make auto dial for internet connection
-- update AV, run in safemode, clear your temp file & internet file and scan your HDD
-- scan your HDD with anti-spyware application (Spybot - Search & Destroy)
-- scan with Regcure

If your pc having experience 1 of them, now you know why it's happen >>:)

tips: How to reboot in safemode? It's simple. Turn on your pc and after your heard beep sound at POST, press F8 several times and menu will come out, select safemode and press enter twice. Logon to your windows account and pop up will show up, just press enter.