Task Manager Won't Open: How to Fix It
Alternative ways to get in when Task Manager itself won't open, and how to rule out malware.
Having the very tool you need to diagnose problems fail on you is especially frustrating. Here are the fixes that genuinely work.
What you'll learn
- Alternative ways to open Task Manager
- How to check whether the problem is permissions or malware
- When restarting is the only option
Simple explanation
If Task Manager won't open, it's usually due to one of three
causes: the system is very overloaded and slow to respond, a group
policy or malware has disabled it, or the explorer.exe
process itself has failed.
Step by step
1. Wait at least 30 seconds
If the system is very busy, it may just be slow to respond instead of not opening at all.
2. Try it from Run (Win + R)
Win + R, type: taskmgr
Press EnterIf this does work but the keyboard shortcut doesn't, the problem is only with the shortcut, not the tool itself.
3. Check whether it's disabled by policy
Win + R, type gpedit.msc (if your Windows version
includes it) → User Configuration → Administrative Templates → System
→ Ctrl+Alt+Del Options, and check that "Remove Task Manager" isn't
enabled.
4. Run a malware scan
This is a typical technique some types of malware use to make it harder for you to detect them. Follow our guide to removing viruses and malware for free if you suspect this.
Tip: if none of this works, Resource Monitor
(resmon from Run) can give you similar information while
you fix the underlying problem.
Warning: if you suspect malware, don't enter passwords or banking details on that machine until you've cleaned it.
Common mistakes
Restarting the PC as the first option without trying the faster alternatives first — this sometimes fixes the immediate symptom but not the cause, and the problem comes back.
Final summary
Before assuming the worst, try the alternative ways of opening it. If none work and you suspect malware, that's the moment to move on to a full scan.
Frequently asked questions
Can an antivirus block Task Manager by mistake?
It's uncommon but not impossible, especially with very strict security settings. Checking the antivirus's log can clarify this.
Is reformatting necessary if Task Manager won't open?
Almost never. In the vast majority of cases it's fixed with the alternatives in this guide, without needing a full reinstall.