Uninstall Trend Antivirus Without Password Average ratng: 9,2/10 1156 reviews

Trend Micro OfficeScan is an enterprise security solution with complete anti-virus, anti-spyware and anti-rootkit that been deployed on company’s desktops, laptops and file servers to protect and secure the perimeters of corporate network and systems against today’s complex, blended threats and Web-based attacks.
Usually, administrators will lock the corporate edition of Trend Micro Office Scan client program by assigning an uninstallation password, which must be entered correctly when computer user attempt to uninstall Trend Micro OfficeScan client from the PC.

So how to uninstall or remove Trend Micro Office Scan when the password to uninstall is unknown or lost? 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.

If the actual uninstall password is missing, the administrator can set a new one and apply this to all Client/Server Security Agents. Click Preferences Global Settings Desktop/Server. If you already installed the Trend Micro Toolbar or Trend Micro Anti-Spam Toolbar, remove them via the CSA main console Tools tab. Otherwise, go to Step 2. Now find the following registry key: HKEYLOCALMACHINE SOFTWARE Microsoft Windows CurrentVersion Uninstall Delete the OfficeScanNT key. Delete the OfficeScan program group (Trend Micro OfficeScan Client) from the Windows Start menu. Restart your computer.

  1. Search for Ofcscan.ini file. Normally the file is located in C:Windows folder for Windows 95 and Windows 98, or C:WINNT directory for Windows NT and Windows 2000. In newer operating system, the Ofcscan.ini can be saved in C:Program Files folder.
  2. Open the Ofcscan.ini file using Notepad for editing.
  3. Search for the [INI_CLIENT_SECTION] section heading.
  4. Locate the line starting with Uninstall_Pwd=. Comment the line (make it inactive by typing a # at the beginning of the line, i.e. #Uninstall_Pwd=….
  5. Insert a new line beneath the existing line as following:

    Uninstall_Pwd=70

  6. Save the Ofcscan.ini file.
  7. Try to uninstall Trend Microsoft OfficeScan again. When prompted to enter a password to continue to uninstall, enter 1 as the password.

Alternatively, if above hack does not work, user can always manually uninstall Trend Micro OfficeScan client, bypassing and skipping all password requirement.

There are many different antivirus programs on the market. If an antivirus is already installed on your computer and you want to install a different antivirus on the computer, you must uninstall the current antivirus program first. Below are the steps on how to uninstall an antivirus program.

Caution

Having more than one antivirus program running on a computer at the same time often causes conflicts, resulting in errors, slow performance, and failure to properly detect viruses.

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Note

Keep in mind that if you have a subscription with the antivirus company, uninstalling the program may not cancel your subscription.

Tip

If you are uninstalling the antivirus because you believe it is causing problems, you can also temporarily disable the antivirus before uninstalling.

Uninstall through the Start menu

The first way is to utilize the built-in uninstall feature of the program by finding the folder for the antivirus program in your Windows Start menu. To do this, click Start, All Programs, and look for the antivirus program in the list of programs.

When you find the antivirus program in the list, locate the uninstall option, which should be in the same folder. If this is available, click the uninstall option and follow the prompts to complete the uninstallation of the antivirus.

Uninstall through Add or Remove programs

The second way is to utilize Add or Remove Programs.

Windows Vista, 7, 8, and 10 users

1. Open the Add or Remove Programs.
2. In the list of installed programs, find the antivirus program and select it by clicking it once with the left mouse button. Once the antivirus program is selected, above the column headers, click the Uninstall option as shown in the picture below to initiate the uninstall process.

Note

Some antivirus programs may be listed several times in the list of programs. Make sure you've uninstalled all associated parts of the antivirus before rebooting the computer or installing another antivirus.

If you're unable to uninstall the antivirus through Add or Remove Programs because of an error, skip to uninstalling from Safe Mode. If the antivirus program is not listed in the Add or Remove Programs, you may have a bad antivirus install or a rogue antivirus.

Windows XP users

1. Open the Add or Remove Programs.
2. In the list of installed programs, find the antivirus program and select it by clicking it once with the left mouse button. To the right of the program name, click the Change/Remove or Uninstall button to initiate the uninstall process.

Note

Some antivirus programs may be listed several times in the list of programs. Make sure you've uninstalled all associated parts of the antivirus before rebooting the computer or installing another antivirus.

If you're unable to uninstall the antivirus through Add or Remove Programs because of an error, skip to uninstalling from Safe Mode. If the antivirus program is not listed in the Add or Remove Programs, you may have a bad antivirus install or a rogue antivirus.

Uninstalling from Safe Mode

In some cases, the uninstall process may not be able to proceed because the antivirus program is currently loaded and running in Windows. If the program cannot be disabled, uninstall the antivirus in Windows Safe Mode. In Safe Mode, the antivirus program is not loaded and running, making it possible to uninstall using either method mentioned earlier.

Bad antivirus program

In some situations, a legitimate antivirus program cannot uninstall because it or the software used to uninstall it is corrupt, bad, or missing. In these situations, you must download an uninstaller program from the antivirus scanner company to remove all files associated with the antivirus. Below is a list of known uninstall links for many of the major antivirus scanner companies.

AntivirusUninstall Link
AvastAvast uninstall link.
AVGAVG uninstall link.
AviraAvira uninstall link.
BitDefender 2015BitDefender 2015 uninstall link.
BullGuardBullGuard uninstall link.
ComodoComodo uninstall link.
Dr. WebDr. Web uninstall link.
eScaneScan uninstall link (direct download).
ESETESET uninstall link.
FRISK F-PROT AntivirusF-PROT uninstall link.
F-SecureF-Secure uninstall link.
G DataG Data uninstall link.
KasperskyKaspersky uninstall link.
K7 Total SecurityK7 uninstaller (direct download).
LavaSoftLavaSoft uninstall link.
McAfeeMcAfee uninstaller (direct download).
Norman Virus Control/Norman Security Suite (now part of AVG).Norman uninstall link.
Norton antivirusNorton Antivirus uninstall link.
Norton Internet SecurityNorton Internet Security uninstall link.
Norton Security ScanNorton Security uninstall link.
PandaPanda uninstaller (direct download).
Panda Cloud Internet ProtectionPanda Cloud uninstall link.
SophosSophos uninstall link.
Trend MicroTrend Micro uninstall link.
VipreVipre uninstall link.
WebrootWebroot uninstall link.
Windows Live OneCareWindows Live uninstaller (direct download).
Windows Security EssentialsMSE uninstall link.
Zone AlarmZone Alarm uninstall forum link.

Rogue antivirus programs

There is also the possibility that the antivirus program attempting to be uninstalled is actually a spyware or malware. There are fake antivirus programs on the Internet and they can do harm to a computer or help someone steal your information. One of the better-known ones to have plagued many computer users is called AntiVirus 2011.

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If your computer is infected malware programs posing as an antivirus program, it is strongly recommended that they be uninstalled. You should run a spyware removal program such as Malwarebytes to clean your computer of any other possible spyware or malware programs.

Additional information

  • See our antivirus and uninstall definitions for further information and related links.