Why Does Windows PowerShell Keep Popping Up?

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If you’ve ever been working peacefully on your Windows PC only to have a blue PowerShell window suddenly flash on your screen—sometimes repeatedly—you know how frustrating it can be. Not only is it annoying, but it can also make you worry: “Is my computer infected? Did I break something?”

The good news? We can fix this. PowerShell popping up randomly is usually caused by scheduled tasks, startup programs, or (occasionally) malware trying to run scripts in the background.

By the end of this tutorial, you will learn how to:

  • Identify what’s causing PowerShell to open automatically
  • Disable unnecessary startup tasks and programs
  • Check for malware that might be triggering the pop-ups
  • Prevent PowerShell from bothering you again

Method-1: Check Your Startup Programs

The first place to look is your startup programs. Sometimes, PowerShell is set to run automatically when Windows boots up.

  1. Open Task Manager by pressing Ctrl + Shift + Esc (or right-click the taskbar and select “Task Manager”).
  2. Click on the Startup tab at the top.
  3. Look through the list for anything suspicious or unfamiliar—especially entries that mention “PowerShell,” “Windows PowerShell,” or scripts (.ps1 files).
  4. If you find something, right-click it and select Disable.

Pro Tip: Don’t recognize a program? Before disabling it, do a quick Google search of its name. Some legitimate Windows processes might look unfamiliar but are actually important. When in doubt, disable it temporarily and see if your system still works normally.

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Method-2: Investigate Scheduled Tasks

Windows runs scheduled tasks in the background—some are useful, others are bloatware or leftover junk that can trigger PowerShell.

  1. Press Windows + S and type Task Scheduler, then open it.
  2. In the left pane, click on Task Scheduler Library.
  3. Browse through the tasks and look for anything that runs frequently or has PowerShell in its actions.
  4. Click on a suspicious task, then check the Actions tab at the bottom. If it says something like powershell.exe or runs a .ps1 script, that might be your culprit.
  5. Right-click the task and choose Disable (don’t delete it immediately—disabling lets you test first).

Common Pitfall: Some legitimate Windows and software updates use Task Scheduler. If disabling a task causes problems (like your antivirus not updating), just re-enable it. The goal is to find rogue tasks, not break your system.

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Method-3: Run a Malware Scan

Sometimes—though not always—PowerShell popping up can be a sign of malware trying to execute scripts on your computer.

  1. Use Windows Security (built into Windows 11/10):
    • Press Windows + I to open Settings.
    • Go to Privacy & Security > Windows Security > Virus & threat protection.
    • Click Quick scan (or Scan options > Full scan if you want to be thorough).
  2. Consider a second opinion: I also like to run Malwarebytes (free version works great) for an extra layer of protection. It catches things Windows Security sometimes misses.

Pro Tip: If malware is found and removed, restart your computer and see if the PowerShell pop-ups stop. If they do, you’ve found your problem!

Read Delete User Profiles Using PowerShell in Windows 11

Method-4: Check Recent Software Installations

Think back: did you recently install any new software, browser extensions, or “free” programs? Some bundled software includes scripts that run via PowerShell.

  1. Press Windows + I and go to Apps > Installed apps (or “Apps & features” on Windows 10).
  2. Sort by Install date and look at recent additions.
  3. Uninstall anything you don’t recognize or don’t need anymore.

Best Practice: When installing free software, always choose “Custom” or “Advanced” installation and uncheck any extra bloatware or toolbars they try to sneak in.

Method-5: Disable PowerShell Scripts Entirely (Advanced Users)

If you’re comfortable with more technical steps and you don’t use PowerShell for work or personal projects, you can restrict script execution altogether.

  1. Press Windows + X and choose Windows Terminal (Admin) or PowerShell (Admin).
  2. Type the following command and press Enter:Set-ExecutionPolicy Restricted
  3. Confirm by typing Y and pressing Enter.

This prevents any PowerShell scripts from running unless you explicitly allow them.

Caveat: Some legitimate software and system tools use PowerShell scripts. If something stops working after this change, you can reverse it by running:

Set-ExecutionPolicy RemoteSigned

In my experience, most everyday users don’t need scripts enabled, so this is a solid preventative measure.

Check out Track User Login History on Windows Using PowerShell

Method-6: Update Windows and Your Drivers

Sometimes bugs in Windows or outdated drivers cause weird behavior—including PowerShell popping up unexpectedly.

  1. Press Windows + I to open Settings.
  2. Go to Windows Update and click Check for updates.
  3. Install any pending updates and restart your PC.

Pro Tip: Also, update your graphics and chipset drivers from your PC manufacturer’s website. Outdated drivers can cause all sorts of quirks.

Why Does Windows PowerShell Keep Popping Up

Method-7: Check Windows Registry (Advanced Users Only)

Warning: Only attempt this if you’re comfortable with registry editing, as mistakes can damage your system.

I checked for corrupted PowerShell registry entries:

  1. Pressed Windows + R, typed regedit, and hit Enter
  2. Navigated to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\PowerShell
  3. Looked for any suspicious or corrupted entries
  4. Created a backup before making any changes

Conclusion

PowerShell popping up randomly is annoying, but you can follow the above steps to fix it. By checking your startup programs, scheduled tasks, and running a malware scan, you can identify and stop whatever’s causing the interruptions. And if you want extra peace of mind, restricting script execution gives you an added layer of protection.

Give these steps a try, and let me know in the comments if one of them solved your issue! And if you’re still stuck, don’t hesitate to reach out.

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