Let’s face it—when your Windows PC acts up, it feels like your whole day is ruined. Maybe it won’t start, or it keeps crashing with that annoying blue screen.
You sit there staring at the screen, completely stuck. But hang in there. You’re not out of options yet.
There are two built-in tools on your Windows computer—SFC and DISM—that can help. They’re kind of like repair tools hiding inside your PC, ready to jump in and fix things when files go missing or get damaged. These tools can even help if your PC refuses to boot or crashes randomly.
So why are these tools important? Well, when your system files are broken, your PC struggles to work properly. It’s like trying to drive a car with flat tires.
But once you run SFC and DISM, you give your system the help it needs to get back on track.
The best part? You don’t need to be a tech expert to use them. I’ll walk you through everything step by step. Just follow along, and you’ll be able to fix your PC yourself.
Ready to get your computer working again? Let’s jump in.
Why system files get messed up and how it affects your PC
Sometimes updates don’t install correctly. Other times, your computer crashes out of nowhere. And when that happens, your system files can get corrupted. It’s not your fault—these things just happen.
When system files get damaged, your PC might slow down, freeze, or show error messages. It might even stop booting altogether.
That’s when tools like SFC and DISM come in handy. They scan your files and fix what’s broken, without deleting anything important.
Think of them as your PC’s cleanup crew. They don’t just keep things tidy—they fix the stuff that’s stopping your computer from working right.
When your PC won’t boot or shows a blue screen
You press the power button… and nothing. Or maybe your screen turns blue with a bunch of white text. It’s frustrating, right?
This usually means something serious is going on inside your system. Some important files might be missing or broken. But don’t panic just yet. Running SFC and DISM from the Recovery Environment can often solve the problem.
These tools scan your system and replace broken files with clean ones. In many cases, that’s all it takes to get your PC working again.
So, before you go searching for a new computer or calling tech support, try this first.
How to Run SFC and DISM from Windows Recovery Mode?
Alright, let’s get into the good stuff. You’re here because your PC’s not working right, and you want to fix it yourself. That’s great. I’ll guide you through each step, nice and easy. We’ll keep it simple, and I’ll explain everything along the way.
#1 Enter the Recovery Environment
First, you need to access the Recovery Environment. This is where we’ll run the repair tools.
If your PC is still booting:
- Hold the Shift key and click Restart from the Start menu.
If your PC isn’t booting at all:
- Turn it on and off three times while it’s starting up. This should trigger the Recovery screen automatically.
Once you’re in, you’ll see a blue screen with a few options. That’s where we want to be.
#2 Launch Command Prompt
Now that you’re in the recovery menu, let’s open the Command Prompt. Don’t worry—it’s just a black window where you type in simple commands.
- Select Troubleshoot.
- Then go to Advanced options.
- Click on Command Prompt.
Done? You’re doing great so far. Now let’s run the actual repair tools.
#3 Run the SFC tool
This tool checks your system for broken or missing files and tries to fix them. It’s super helpful when your PC is acting weird.
- In Command Prompt, type: sfc /scannow
- Press Enter.
Now, wait. This scan can take a while, especially if your system has a lot of issues. Just let it run. When it’s done, it’ll tell you if it found and fixed any problems.
If it says everything’s okay, great! But if it says it couldn’t fix some files, don’t worry. That’s where DISM comes in.
#4 Use DISM to repair Windows
DISM is like the backup fixer. It goes even deeper than SFC and can fix issues SFC can’t handle. Let’s run it next.
- In the same Command Prompt window, type:
DISM /Online /Cleanup-Image /RestoreHealth - Press Enter.
This one also takes a little time, so be patient. Once it’s done, you should see a message saying the operation completed successfully. That means it worked!
#5 Restart and check if everything’s fixed
Now that both tools have done their job, let’s restart your PC and see if it works better.
- Close the Command Prompt.
- Select Continue to boot into Windows.
Fingers crossed, your PC should now be running smoother. If it still has issues, there might be something else going on—but for most people, this fixes the problem.
Running SFC and DISM is like giving your computer a fresh start. It’s not a full reset, but it can fix a lot of annoying problems without deleting your files.
Other tips to keep your PC healthy
1. Stay updated with Windows
When your computer asks to update, don’t ignore it. Those updates fix bugs and make your system more stable. Let them run.
It only takes a few minutes, and it can save you from future trouble.
2. Backup your data often
Imagine losing your photos, documents, or work files because of a crash. That’s why you should back up your stuff.
Use an external drive or cloud storage. Do it regularly so you’re never caught off guard.
3. Try Safe Mode if your PC boots
If your PC turns on but acts weird, boot into Safe Mode. It loads only the basics and can help you figure out what’s wrong. Just press F8 during startup and choose Safe Mode.
4. Run virus scans regularly
Viruses and malware can also mess up your system files. Make sure your antivirus is up to date and scan your PC weekly. You’ll catch problems early and keep your system clean.
5. Check your hardware
Sometimes, it’s not the software—it’s the hardware. If your hard drive has bad sectors or your RAM is faulty, your system will act up.
Use tools like Check Disk to scan for hardware errors. Catching them early can save you from bigger problems later.
The Takeaway
Look, dealing with a broken PC is never fun. But the good news? You’ve got tools like SFC and DISM right there in your system, ready to help.
They’re simple, powerful, and can fix a lot of problems without needing a tech expert.
SFC checks for broken files. DISM goes deeper and repairs your system image. Together, they’re like a tune-up for your computer. And the best part? You can run them yourself, even if you’re not super tech-savvy.
So next time your PC’s acting up—whether it’s not booting, showing blue screens, or just being slow—remember this guide. Try these steps. Give your system the fix it needs.
You’ve got this. Your PC will thank you. And if you’ve got questions or want to share how it went, drop a comment below. I’d love to hear from you.
