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PA Bear MS MVP asked on
MVP MCC: Content Creator

Can I install MSE to clean up my already-infected computer?

Q: My computer came with an anti-virus application preinstalled but the free trial period already expired. I haven't had an anti-virus application installed for ages. Can I install MSE to clean up my already-infected computer?

A: Speaking from experience, it's doubtful that MSE or any other anti-virus/antispyware application would install (or install properly) on an already-infected computer.

You have two choices:

1. Back up your personal data (none of which should be considered 100% trustworthy) then format your HDD and do a clean install of Windows.

     NB: A Repair Install or In-Place Upgrade will not fix an infected computer!

2. See if you can get the computer cleaned-up with the assistance of an knowledgable expert in such matters. You will find such assistance in http://spywarehammer.com/simplemachinesforum/index.php?board=10.0, http://www.spywarewarrior.com/viewforum.php?f=5, http://www.dslreports.com/forum/cleanup, http://www.bluetack.co.uk/forums/index.php, and other appropriate forums.

MS PCSafety also provides home users (only) no-charge support in dealing with malware infections such as viruses, spyware (including unwanted software), and adware. Start here: https://support.microsoft.com/oas/default.aspx?&prid=7552&st=1 

Helpful References:

Protect Your PC

5 steps to help protect your new computer before you go online

Steps To Help Prevent Spyware

Steps to Help Prevent Computer Worms

Avoid Rogue Security Software!

~Robear Dyer (PA Bear)
MS MVP (IE, Mail, Security, Windows & Update Services) since 2002
Disclaimer: I neither represent nor work for Microsoft
~Robear Dyer (PA Bear)
MS MVP-Windows Client (Security, Update Services, IE & Mail) since 2002
Found this helpful 11
PA Bear MS MVP replied on
MVP MCC: Content Creator
Also see...

     Help: I Got Hacked. Now What Do I Do?
~Robear Dyer (PA Bear)
MS MVP-Windows Client (Security, Update Services, IE & Mail) since 2002