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Useful Methods When Windows Security is Not Opening

May 21, 2025 54 views

If Windows Security presents you with a blank page or spinning wheel, you might be thinking “is my PC even protected right now?”. This is generally due to an update or app conflict. The good news is that it can be fixed in most cases with some specific fixes rather than a system refresh. In this guide, I’ll take you through proven solutions. From quick fixes to advanced PowerShell commands, we’ll get things back on track.

Basic Troubleshooting Steps

Let’s start with the simple stuff because honestly, that’s often all it takes. If Windows Security isn’t opening, don’t jump to the deep fixes just yet. These quick, basic steps could be all you need to get things working again, and if not, no need to worry. We’ll move on to the heavier solutions next.

Step 1: Click the Start menu and select the Power icon to access shutdown and restart options.

Power Options


Step 2: Open the Start menu again and select “Settings”. It’s the gear icon on the left, or you can type “Settings” into the search bar and hit Enter.

Start Menu


Step 3: In the Settings window, go to Windows Update, then click Check for updates and let Windows scan for anything new. If updates are available, download and install them.

Windows Update


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Repair and Reset the Windows Security App

Step 1: Now click on System, then select System Components. This will open a list of core Windows features, including those tied to system security and app behavior.

Access System Components


Step 2: Scroll down and find Windows Security in the list. Then select Advanced Options.

Windows Security Settings


Step 3: First, try clicking Repair. This will fix app issues without deleting any data.

Repair Windows Security


Step 4: If that doesn’t work, click Reset. This will clear any corrupted app data but won’t affect your system files.

Reset Windows Security


Step 5: Now find Background component permissions and ensure it’s set to either Always or Power optimized.

Background Permissions Settings

Force Open Windows Security from Task Manager

Sometimes Windows Security won't open the normal way, but it doesn't necessarily mean it's completely unresponsive. There’s a sneaky little trick I’ve used more than once to force it open manually. It is done with a mere few clicks and surprisingly effective in recalcitrant instances. Let's go through how you can do it straight from Task Manager:

Step 1: First, you’ll need to open Windows Task Manager. Use the search bar to look for “Task Manager”, then click to open it. Alternatively, you can press “CTRL + ALT + DEL” and select “Task Manager” from the options that appear.

Open Windows Task Manager

Step 2: Click on Run new task

Task Manager run new task

Step 3: In the field, type windowsdefender: and check the box “Create this task with administrative privileges”. Then click OK.

Open Windows Security task

Open Windows Security task


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Disable Conflicting Software

Third-party antiviruses tend to be the culprits if Windows Security won't open.

They attempt to monopolize system protection, which can create conflicts behind the scenes.I have witnessed this with Avast, Norton, Bitdefender, name them.

The good news? Turning off or uninstalling them tends to fix things quickly.

Temporarily Disable or Uninstall Third-party Antivirus

Step 1: Open the Settings, then select Apps & features. Then find your antivirus software and click Uninstall or Modify.

Uninstall App in Settings

Step 2: Follow the prompts to temporarily remove or disable it.

Note: You can either keep using Windows Security or reinstall the third-party tool after configuring exceptions.

WPS Office – Keep Working While You Fix Windows Security

While trying to fix Windows Security, I still had stuff to get done, checking some PDFs, editing a doc, noting down steps as I went. I didn’t want to open five different apps just to keep things moving. That’s when I started using WPS Office. It gave me a simple way to stay organized without slowing things down or distracting from the main issue. Having everything in one place made the whole troubleshooting process feel less scattered.

WPS AI

If you’re knee-deep in fixing the “Windows Security not opening” mess: running DISM scans, resetting apps, or poking around in Task Manager it’s easy to lose track of what you’ve done. Here’s how WPS Office helps you stay focused without losing momentum:

  • Built-in support for image insertion and format compatibility: WPS Writer lets you document every fix as you try it. Add screenshots, log what worked (or didn’t), and create a clean, readable record so you’re not second-guessing your steps later.

  • WPS AI for image-to-text extraction (OCR) and file summary: Need to pull info from a screenshot or summarize a wall of text from a tech forum? WPS AI handles it fast, no switching tools or retyping error messages line by line.

  • Seamless PDF and document integration, convert, annotate, and share in seconds: Open that long Microsoft support PDF without lag. Highlight what matters, ignore the fluff, and mark the pages with your own notes as you troubleshoot.

  • Simple UI with no need for additional plugins or extensions: No complicated installs, no waiting on updates, it’s all right there, ready to go. You won’t lose time just trying to get your tools to load.

  • Direct HEIC image support with PDF export: Drop in HEIC screenshots from your phone and export them into a quick PDF to review later. It’s smooth, fast, and saves you from jumping between apps.

FAQs

1. Why won’t my Windows Security app open?

It’s usually due to corrupted system files, disabled services, or conflicts with third-party antivirus software.

2. Can malware cause this problem?

Yes, certain malware can block or disable Windows Security. Run a full scan using Microsoft Safety Scanner or a trusted antivirus.

3. How is the new Snipping Tool on Windows 11?

Temporarily, yes. Use a reliable free antivirus while fixing Windows Security, then switch back once it’s working properly.

Fix it. Protect it. And Keep Going with WPS Office

When Windows Security not opening becomes an issue, it’s more than a minor glitch, it’s a roadblock that can leave your system exposed. But as you've seen, fixing it doesn’t have to be complicated. From quick restarts to digging into settings, there’s a clear path to getting your protection back in place. And while you’re sorting it all out, WPS Office makes sure your day doesn’t stop. No setup headaches, no waiting around, just an all-in-one workspace that lets you edit, convert, and organize with zero fuss. Stay protected, stay productive, and let WPS Office handle the rest.

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15 years of office industry experience, tech lover and copywriter. Follow me for product reviews, comparisons, and recommendations for new apps and software.