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WIN firewall turned off by SP2

By mickzer
Jun 26, 2006
  1. Hi All,
    I recently cleaned a friends computer of several viruses and trojans and when it was clean I put SP2 on it . But it turned off the Windows Firewall an wouldn't let me turn it back on!! Anyway, I was going to put another firewall on it but for future reference , how would I get Windows Firewall up and running again?
  2. Ididmyc600

    Ididmyc600 TechSpot Chancellor Posts: 1,415

    Its unlikely that the SP2 turned off the firewall, you may still be virused, adding any other firewall may be a waste of time as most viruses can turn them off quite easily.

    When you say you cleaned... how exactly did you clean it, the best way would be to reinstall fully after backing up your data.
  3. Peddant

    Peddant TS Rookie Posts: 1,446

    Try the fix HERE It replaces a missing or corrupt shared access key.

    If that fails -

    1. Click Start, Run and type Regedit.exe
    2. Navigate to the following locations:

    HKEY_LOCAL_MACHINE \ SOFTWARE \ Policies \ Microsoft \ WindowsFirewall
    HKEY_CURRENT_USER \ SOFTWARE \ Policies \ Microsoft \ WindowsFirewall

    3. Backup and then delete the WindowsFirewall key.
    4. Close Regedit.exe and restart Windows

    They are Group Policy restrictions ,possibly enabled by spyware.
  4. mickzer

    mickzer TS Rookie Topic Starter Posts: 101

    Thanks Ididmyc600,
    I cleaned it with Ewido ,AVG7,Ad-aware,etc..

    Thanks Peddant,
    Thanks for the link and help. Will try other help if it reoccurs.

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