Having more than one security program installed at the same time can cause performance issues and leave your PC more exposed to threats. If you're running into trouble installing Trend Micro Security, another security program may be blocking it. Follow the steps below to remove any conflicting programs, then try installing again.
Step-by-Step: Uninstall Conflicting Programs on Windows
-
Click the Start icon, then open Settings.
- Windows 11: Go to Apps > Installed apps.
- Windows 10: Go to Apps > Apps & Features.
-
Check if any program from the list below is installed on your PC. If you find one, click it and select Uninstall (or Remove).
- 360 Total Security and its related Windows products
- Adaware Antivirus and its related Windows products
- Ad Subtract Pro
- Advanced SystemCare
- Advanced System Protector
- AhnLab V3 and its related Windows products
- ANSAV
- Antimalware Engine
- Antispam Engine
- Anvi Smart Defender
- Arovax AntiSpyware
- Avast Antivirus and its related Windows products
- AvcEngine
- AVG AntiVirus and its related Windows products
- Avira AntiVirus and its related Windows products
- AVSDK5
- Beat Trojan
- BitDefender Antivirus and its related Windows products
- Blank ICE 36
- Browser Guard
- BullGuard Antrivirus
- BitDefender Antivirus and its related Windows products
- CA Internet Security and its related Windows products
- Check Point NGR
- Chromodo
- Clam AV
- COMODO Antivirus and its related Windows products
- CounterSpy
- CyberDefender and its related Windows products
- CYBERsitter and its related Windows products
- Digiturbo VirusDoctor (Ja) Retail
- Dr. Web 4.33
- e-frontier Virus Killer and its related Windows products
- eScan AntiVirus and its related Windows products
- ESET Antivirus and its related Windows products
- eTrust Antivirus and its related Windows products
- File Security
- Final Security
- FirewallEngine
- Flets Tool
- Folder Lock
- FortiClient and its related Windows products
- F-Secure and its related Windows products
- G Data Total Protection and its related Windows products
- G-Buster
- GeekBuddy32
- HP Sure Click
- HP Sure Sense
- INTERMUTE SpySubtract PRO
- IObit and its related Windows products
- iolo and its related Windows products
- Jiangmin AntiVirus and its related Windows products
- K7 AntiVirus and its related Windows products
- Kaspersky Antivirus and its related Windows products
- Kerio PFW
- Kingsoft AntiVirus and its related Windows products
- Lavasoft Ad-Aware
- Malwarebytes
- McAfee Antivirus and its related Windows products
- Micropoint_微点主动防御软件1.2.10581.0270
- Microsoft Family Safety
- Microsoft Live One Care
- Microsoft Live One Care Family Safety
- Microsoft Security Essentials
- Movies Toolbar for Explorer/Firefox/Chrome
- Music Toolbar for Explorer/Firefox/Chrome
- NAV
- NIS
- NEC Inter Channel v3 Virus Block Internet Security
- NOD32 Antivirus System
- Norton Security and its related Windows products
- Online Threats Engine
- Outpost PFW
- Outpost PFW Pro
- Panda Antivirus and its related Windows products
- PC Gate Personal
- PC Tool Antivirus
- PC Tools™ Internet Security
- Pest Patrol
- Private Firewall
- Quick Heal Antivirus and its related Windows products
- Radial Point Security and its related Windows products
- Rapport Category
- Restoro
- Rising AntiVirus
- Search Protect
- SG AntiSPY
- SkyNet
- Sophos and its related Windows products
- Source Next
- SpyBot
- Spybot - Search & Destroy
- Spy Catcher
- Spy Hunter
- Spy Killer
- Spy Subtract Pro
- Spy Sweeper
- Spy Sweeper/Webroot AntiVirus with AntiSpyware
- SpywareBlaster
- Spy Zero
- Spyware Bluster
- Spyware Doctor
- Spyware Hunter
- Sunbelt Personal Firewall
- Super AntiSpyware
- Super Security Zero
- Surfing Protection
- Sygate Personal Firewall
- Sygate Personal Firewall Pro
- Symantec AntiVirus and its related Windows products
- System Mechanic
- System Mechanic Professional
- System Shield for Antivirus AntiSpyware
- Threat Fire
- Tiny Firewall
- Tiny Firewall Personal
- Tiny Firewall Pro
- Total Access Smart Installer
- Trend Micro Anti-Spam Toolbar
- Trend Micro Anti-Spyware
- Trend Micro Antivirus (all versions)
- Trend Micro Browser Guard
- Trend Micro Firewall Booster
- Trend Micro HouseCall
- Trend Micro Internet Security (all versions)
- Trend Micro OfficeScan
- Trend Micro Okaeri
- Trend Micro PC TuneUp
- Trend Micro PC-Cillin
- Trend Micro Protection
- Trend Micro Safe Surfing Companion
- Trend Micro Security (all versions)
- Trend Micro Security for Dell (all versions)
- Trend Micro Titanium (all versions)
- Trend Micro TrendProtect Desktop
- Trend Micro Web Protection Add-On
- Trend Micro Worry-Free Business Security
- Trusteer Rapport
- V3 Virus Block
- V3 Virus Block Internet Security Platinum
- V3 Virus Block Internet Security
- VIPRE Antivirus and its related Windows products
- Virus Chaser
- Virus Doctor
- Virus Killer Firewall
- Virus Killer
- Virus Protector
- Virus Security
- WebRoot SecureAnywhere and its related Windows products
- Windows Live OneCare Family Safety
- WinPatrol
- ZoneAlarm and its related Windows products
- スーパーセキュリティ ZERO
- 木馬清除大師2009
- 费尔托斯特安全
- 金山毒霸 2009
- 金山毒霸V9.0 網路安全套裝
- 金山網盾3.6.4
- Wait for the uninstall to finish, then restart your computer.
-
Once your PC restarts, try
installing Trend Micro Security
again.
If the main console shows Protected, you're all set! ✅
Having Trouble Removing a Program?
Some security programs block standard uninstall. If a program won't remove through Settings, try these:
- Use the vendor's removal tool — click the linked program names in the list above to go directly to each vendor's official uninstall guide.
- Try Safe Mode — restart your PC in Windows Safe Mode, then repeat the steps. This prevents background security processes from interfering.
- Contact the program's support team if neither option works.
If the issue continues after removing the conflicting program, contact Trend Micro Support