Uninstall Trend Micro OfficeScan without the password.

Have you lost the Trend Micro OfficeScan Client uninstall password?
Here is two tips on how to reset / remove the password.

TIP # 1

  1. Search for the file called ofscan.ini. It is usually located in the C:\Program Files\Trend Micro Folder
  2. Open the file and search for Uninstall_Pwd= The line should look something like this:
    Uninstall_Pwd=!CRYPT!523F81805821877E0B01581347A29A8A7832308289578B8F175DF692BF
  3. Remove everything on the line that is behind Uninstall_Pwd=
  4. After Uninstall_Pwd= write 70 it should look like this Uninstall_Pwd=70
  5. Save the file.
  6. Go to Add Remove Program and uninstall Trend Micro OffieScan. When prompted for the password enter 1 as the password,

TIP # 2

  1. Disconnect the computer from the network.
  2. Open regedit.
  3. Go to [HKEY_LOCAL_MACHINE\SOFTWARE\TrendMicro\PC-cillinNTCorp\CurrentVersion\Misc.]
  4. Change the dword “Allow Uninstall” from 0 to 1
  5. Use Add remove programs to uninstall Trend Micro.
  6. Restart your computer.
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60 Responses to Uninstall Trend Micro OfficeScan without the password.

  1. Tomas says:

    Did not find it where it said but in WOW6432 node.

  2. Sandy says:

    In Option 2 I get as far as #3, but can’t find dword “Allow Uninstall” anywhere. Where should I be looking?

  3. Hrobky says:

    Tomas is right, on 64bit Windows:

    [HKLM\SOFTWARE\WOW6432Node\TrendMicro\PC-cillinNTCorp\CurrentVersion\Misc.\Allow Uninstall]: DWORD = 1

    and the uninstallation stopped to asking for password.

  4. yilou says:

    is there anyway to access UNLOCK function in trend micro security agent without password, this guide to uninstall works but i want to disable it than uninstall but anytime i try access UNLOCK function it ask for password and i do not have access to my web anymore

  5. Wanda J Shrout says:

    says I need password etc to uninstall this app

  6. Wanda J Shrout says:

    Won’t let me uninstall this!

  7. Wanda J Shrout says:

    Can’t uninstall this!

  8. Nicholas says:

    Follow this.

    You should be able to uninstall

    https://www.crestline.net/uninstall-trend-micro-without-password/

  9. CJL says:

    I was able to uninstall by manually closing the program(s) Trend Micro etc. in Task Manager, and then changing the registry key as outlined in the above link. This is a working alternative to restarting in Safe Mode.

  10. Ahmed says:

    In safe mode all the obove in tip#2 is workable, thank you

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