How to Fix Error Code 0xC0000225 in Windows 10
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Seeing the 0xc0000225 error on Microsoft Windows 10 when you try to boot your PC? This common error is a huge pain because it prevents your PC from booting at all.

Thankfully, you can usually fix this error with a bit of work. We’ll show you how to fix error code 0xc0000225 on Windows 10.

What Is Error Code 0xC0000225?

You’ll see this error code when you try to boot your PC. Windows displays it with a message saying Your PC needs to be repaired and the vague An unexpected error has occurred. Sometimes it also says A required device isn’t connected or can’t be accessed.

Microsoft Windows throws this error when it can’t find the correct system files for booting. This vital information is known as Boot Configuration Data, or BCD. When you turn on your PC, it tells Windows how to boot properly.

This error is more common on disks that use the newer UEFI specification with the GPT partition scheme than older setups.

Windows’ message about it is a little vague, so we’ll need to put on our Windows troubleshooting caps Windows Troubleshooting for Dummies Windows Troubleshooting for Dummies Windows takes a lot of crap for problems outside of its control. Learn about the biggest issues people incorrectly pin on Windows and how to actually troubleshoot them. Read More to solve it.

What Causes Error Code 0xC0000225?

Since this error deals with corrupted system files How to Fix a Corrupted Windows 10 Installation How to Fix a Corrupted Windows 10 Installation System corruption is the worst that could happen to your Windows installation. We show you how to get Windows 10 back on track when suffering from BSODs, driver errors, or other unexplained issues. Read More , it often pops up after an OS upgrade (such as upgrading from Windows 7 to Windows 10).

It can also occur if your PC shuts down during an important update, from malware attacking system files or even from faulty hardware.

Follow the below steps to hopefully fix your issue, no matter the cause.

Step 0: Create a Windows 10 Install Disk

Like other boot errors, you can’t troubleshoot this from inside Windows. Thus, you’ll need to have a Windows 10 install disk handy so you can run repair tools from there. Follow our guide to creating Windows 10 installation media How to Create Windows 10 Installation Media How to Create Windows 10 Installation Media Regardless of how you arrived at Windows 10, there's a way to create your own installation media. Sooner or later you might need it. Let us show you how to be prepared. Read More to obtain the needed disk.

You’ll need a flash drive with at least 8GB of space, or a DVD. Note that creating the Windows 10 disk will erase everything present on the drive, so we recommend using a blank flash drive or DVD.

Once you’ve created your install media, insert it into your computer. Press the appropriate key to open the boot menu How to Change the Boot Order on Your PC (So You Can Boot From USB) How to Change the Boot Order on Your PC (So You Can Boot From USB) Learn how to change the boot order of your computer. It's important for troubleshooting issues and tweaking settings, and it's a lot easier than you think. Read More , and load the Windows 10 disk from your external device.

Step 1: Windows Automatic Repair

First, you’ll want to try Windows 10’s built-in troubleshooter 13 Troubleshooting Tools to Fix Windows 10 13 Troubleshooting Tools to Fix Windows 10 For every Windows issue, there's a tool you can use to fix it. Find your problem in this list and pick one of the 13 troubleshooting and repair tools for Windows 10. Read More . This has the system automatically check for issues and attempt to fix them on its own. Hopefully, it will repair your corrupted BCD so you can get back to work.

After booting from your Windows 10 install disk, wait until you see the Windows Setup screen. Confirm your language options, then click Next. When you see the Install now screen, click the Repair your computer link in the bottom-left instead.

repair-your-computer-windows-8-boot-from-installation-media.png

You’ll see a menu of options; select Troubleshoot then Advanced options. From the Advanced options menu here, select Automatic Repair. Let the process go through, then restart your computer when it’s done.

windows-8-automatic-repair.png

Try to boot normally again. If error code 0xc0000225 doesn’t pop up, you’ve fixed the issue!

Step 2: Run Manual SFC and Check Disk Scans

If Windows’s automatic repair didn’t work, you can try a few important system scans yourself. To do so, repeat the above process to open the Advanced options menu, but don’t select Automatic Repair. Instead, choose Command Prompt to open a command line interface.

First, run the System File Checker (SFC) command, which checks for corrupt or missing Windows system files and tries to repair them:

sfc /scannow

After this completes, run the Disk Check scan to check for errors on your hard disk. Use the following command, replacing c: with the letter of your main partition if you’ve changed it:

chkdsk c: /r

Once you’ve run both of these scans, reboot and try to load up your PC normally again. Hopefully, the error won’t pop up anymore.

Step 3: Rebuild the BCD

If you’re still having problems, the next step you can try is a command to rebuild the BCD. Since this is often what causes the error, this might be the trick for you.

Again, boot from your Windows 10 installation media and open the Advanced options menu. Select Command Prompt this time, too. Run the following commands one at a time:

bootrec /scanos
bootrec /fixmbr 
bootrec /fixboot 
bootrec /rebuildbcd

The first command scans your disk(s) for compatible installations, which can help it find your “missing” Windows installation. Commands two and three write a new MBR and boot sector to your disk. The final command scans again for Windows installations after the fixes.

Reboot your computer once more and hopefully, this will clear up the error 0xc0000225 message.

Step 4: Set Your Active Partition

Windows allows you to change the active partition so you can tell the system where to boot from. If this somehow becomes incorrect, you can change it to point Windows to the correct partition.

Go through the above to open a Command Prompt from your Windows repair disk. Type the following commands one at a time to open the Disk Partition tool and list your available disks:

diskpart
list disk

You’ll see a series of entries labeled Disk 0, Disk 1, and so on. Your internal hard drive is most likely Disk 0—you can tell by the Size which is which. Type the following one at a time, replacing the X with 0 or whatever the number of your HDD is:

select disk X
list partition

That second command will show all partitions on your internal drive. Your main partition may be 0; it was 4 (marked as Primary) for me.

Diskpart-Partitions-Windows-10

Then enter these commands, replacing the X with your partition number:

select partition X
active

Exit the Command Prompt, reboot, and see if your issue is fixed.

This marks the partition you have Windows installed on as the one Windows uses to boot. If this somehow changed and resulted in the 0xc0000225 error, this can put everything back the way it was.

Step 5: Check for Faulty Hardware

At this point, you’ve done a good amount of the software troubleshooting to fix this error. If you still can’t boot, you should consider checking your hard disk for physical issues.

Check to make sure the drive cable isn’t damaged, and reseat it if possible. Depending on your computer manufacturer, you also may have some built-in diagnostic tests that can check for drive issues.

Follow our guide to diagnosing a bad hard drive How to Diagnose and Fix a Dead Hard Drive to Recover Data How to Diagnose and Fix a Dead Hard Drive to Recover Data Several years ago, I experienced a hard drive failure. I was at work when my laptop suddenly started to act particularly strange. About half an hour later, the hard drive failed audibly and the laptop... Read More for some tips. Once you’ve confirmed that your hard drive is healthy, you’ll have to resort to…

Step 6: Try System Restore or Reinstall Windows

If this problem started recently, you can try a System Restore from the recovery disk to go back in time. Boot from your install media again, navigate to the Advanced options menu, and select System Restore. Pick a recent restore point and Windows will return to that point without affecting your personal files.

reset-your-pc-windows-8.png

If you don’t have any restore points or the restore doesn’t fix the issue, it’s best to reinstall Windows to replace the broken system files and get everything else fresh. This is time-consuming but it’s your best bet if you’ve gotten this far.

You’ll find a Reset this PC option under Advanced options > System Restore on your recovery disk. Follow our guide to resetting Windows 10 4 Ways to Reset Windows 10 and Reinstall From Scratch 4 Ways to Reset Windows 10 and Reinstall From Scratch Windows 10 is still Windows, meaning it will need a fresh start every once in a while. We show you how you can get a fresh Windows 10 installation with as little effort as possible. Read More for more information.

Error Code 0xC0000225 Fixed!

Hopefully, one of these methods will clear up error 0xc0000225 on Windows 10 for you. Whether this was caused by a botched upgrade or hardware error, you thankfully have options to combat it.

For more tips like this, check out our guide to solving Windows boot problems How to Solve Most Windows Boot Problems How to Solve Most Windows Boot Problems Is your Windows computer not booting up? It could be because of a hardware, software, or firmware error. Here's how to diagnose and fix these problems. Read More .

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