Uninstall Trend Antivirus Without Password
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Trend Micro OfficeScan 8.0 is compatible with Windows Vista or earlier, so if you are upgrading your business computers to Windows 7 or higher you may want to remove this software. In most cases, you can remove the client from the Control Panel. If this method is unsuccessful you can remove the application manually. Because manual removal requires deleting registry keys, try uninstalling from Add/Remove Programs in the Control Panel first, as modifying the registry incorrectly can damage your system.
Here’s a simple hack to remove or reset the uninstallation password for TrendMicro OfficeScan, after which user can uninstall Trend Micro Office Scan by using the default password. Search for Ofcscan.ini file. Open the Ofcscan.ini file using Notepad for editing. Search for the INICLIENTSECTION section heading.
Control Panel
1.Click the Start button and select 'Control Panel.'
2.Click on 'Programs' and select 'Programs and Features.'
3.Choose 'Trend Micro OfficeScan 8.0' in the list of currently installed programs and click 'Uninstall.'
4.Click 'Yes' or enter your administrator password if prompted by the User Account Control window.
Manual Uninstall
1.Right-click the OfficeScan icon in the system tray next to the computer clock. Select 'Unload OfficeScan.' Enter a password if prompted. Open the Windows Services console if a password is not required. Click the Start button, type 'services.msc' into the search box and press 'Enter.' Click 'OfficeScanNT Listener' and click 'Stop.' Stop 'OfficeScanNT RealTime Scan' and 'OfficeScanNT Personal Firewall' as well. Close the console.
2.Click the Start button, point to 'Programs' and right-click 'Trend Micro OfficeScan Client.' Click 'Delete' and confirm that you want to delete the program. Prince hal quotes.
3.Click the Start button and select 'Run.' Type 'regedit.exe' without quotes into the Open box and click 'OK' to open the Registry Editor. Right-click 'HKEY_LOCAL_MACHINESOFTWARETrendMicro' and select 'Delete.' Confirm that you want to delete the key. Delete 'HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionUninstallOfficeScanNT' and 'HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionRun Name: OfficeScanNT Monitor (REG_SZ)'.
4.Delete the registry keys “ntrtscan,” “tmcfw,” “tmcomm,” “TmFilter,” “Tmlisten,” “tmpfw,” “TmPreFilter,” “TmProxy,” “tmtdi,” “VSApiNt”and “ntrtscan” in the following locations: “HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServices”, “HKEY_LOCAL_MACHINESYSTEMControlSet001Services”, “HKEY_LOCAL_MACHINESYSTEMControlSet002Services” and “HKEY_LOCAL_MACHINESYSTEMControlSet003Services”. Close the Registry Editor.
5.Click the Start button, point to 'Settings' and select 'Control Panel.' Double-click 'System,' select the 'Hardware' tab and click 'Device Manager.' Select the 'View' menu and click 'Show Hidden Devices.'
6.Click the arrow next to 'Non-Plug and Play Drivers' to expand the item. Right-click 'tmcomm' and select 'Uninstall.' Click 'OK' to confirm you want to uninstall the driver. Uninstall “Trend Micro Filter,” “Trend Micro PreFilter,” “Trend Micro TDI Driver” and “Trend Micro VSAPI NT” in the same manner. Close the Device Manager.
7.Open 'Control Panel,' select 'Network and Internet Connections' and click on 'Network Connections.' Right-click 'Local Area Connection' and select 'Properties.' Click the 'Networking' tab, select 'Trend Micro Common Firewall Driver' and click 'Uninstall.'
8.Restart the computer. Click the Start button and select 'Computer.' Double-click 'Local Disk (C:)' and then open 'Program Files.' Click on 'Trend Micro' and press 'Delete.' Confirm that you want to delete the directory.
Tip
- Incorrectly editing the Windows registry can seriously damage your system. You can back up your registry to an external device before making any changes in case you need to correct any mistakes (link in Resources).
Warning
- Information in this article applies to Windows Vista. It may vary slightly or significantly with other versions or products.
References (2)
Resources (1)
About the Author
Tricia Goss' credits include Fitness Plus, Good News Tucson and Layover Magazine. She is certified in Microsoft application and served as the newsletter editor for OfficeUsers.org. She has also contributed to The Dollar Stretcher, Life Tips and Childcare Magazine.
Photo Credits
- deleting data image by dinostock from Fotolia.com