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Are you having trouble how to Fix “Windows Sandbox Failed to Start” Error? This is the place where you can safely try out new apps. It’s like your own testing ground, but all of a sudden, it stops working, and you see the word “Failed to Start.” Do not worry! I can help you fix this issue so you can test your apps without any stress. Windows Sandbox is meant to be a fun and useful tool, but it can break down for a number of reasons.
It could be a problem with a service, software that doesn’t get along, or things that aren’t working right. I’ll give you easy ways to try to fix the problem in this guide. We’ll start with simple tips like turning features back on, and then we’ll move on to more in-depth checks of your system.To make things easy for you, I’ll use plain English to talk you through each step. It’s okay if you’re not tech-savvy to follow along.
This guide is like a shovel; it will help you get out of this sandbox mess and get back to testing apps the way you want to. For now, take a deep breath and let’s work together to get your Windows Sandbox back up and running! here are the simple ways How to Fix “Windows Sandbox Failed to Start” Error. If you want to know more information about this issue visit Microsoft Official Website.
What is “Windows Sandbox Failed to Start” Error
The “Windows Sandbox Failed to Start” mistake usually means that your computer is having trouble with virtualization. Windows Sandbox uses a unique technology to make a safe area where you can run programmes that you might not trust. You might not be able to get the Sandbox to work if the virtualization support is not turned on in your computer’s BIOS or UEFI settings or if it conflicts with other virtualization programmes you have. Make sure that virtualization is turned on in the BIOS or UEFI settings of your computer to fix this.

Also, see if any other virtualization tools are giving you trouble and disable them if they are. Making sure that your computer’s drivers are up-to-date and that you have the most recent version of Windows can also help fix problems that could be causing this error to show up. By doing these things, you can make sure that Windows Sandbox’s virtual environment works well. This will let you run programmes in a safe and separate area of your computer.
Causes for “Windows Sandbox Failed to Start” Error
- Windows version that is too old: Sometimes, the Windows Sandbox won’t start if your Windows OS isn’t up to date.
- Hardware virtualization is turned off: The problem might happen if the hardware on your computer doesn’t support virtualization or if the system BIOS or UEFI settings don’t allow virtualization.
- Not Enough System Resources: Windows Sandbox might not start if your computer doesn’t have enough CPU, RAM, or disc space.
- Problems with Graphics Drivers: If your graphics drivers are out of date or don’t work with Windows Sandbox, you may have trouble starting it up.
- The Windows Sandbox feature is not turned on: The Windows Sandbox might not be able to start because the feature might not be turned on in your version of Windows.
How to Fix “Windows Sandbox Failed to Start” Error
Re-Enable Windows Sandbox

- Press Windows + R to open the Run dialog.
- Type optionalfeatures and press Enter.
- Uncheck the box for Windows Sandbox.
- Click OK and restart your computer.
- Repeat the steps, but this time, check the box for Windows Sandbox and click OK.
Start Essential Services
- Press Windows + R, type services.msc, and press Enter.
- Locate and start the following services (if they’re not already running):
- Hyper-V Host Compute Service
- Hyper-V Virtual Machine Management
- Hyper-V Remote Desktop Virtualization Service.
Run Windows Troubleshooter

- Go to Settings > Update & Security > Troubleshoot.
- Under Find and fix other problems, select Windows Sandbox.
- Click Run the troubleshooter and follow the on-screen instructions.
Check for Updates and Disable Conflicting Software
- Go to Settings > Update & Security > Windows Update.
- Click Check for updates and install any available updates.
- Temporarily turn off antivirus and firewall software.
- Check for anything that could disrupt Sandbox.
Repair System Files
- Open a command prompt as administrator
- search for “cmd” and right-click “Run as administrator“).
- Type sfc /scannow and press Enter.
- Let the scan complete and fix any detected errors.
Conclusion
In the end, it’s not too hard to fix the issue that causes “Windows Sandbox Failed to Start” as long as you do it one step at a time. For starters, make sure that your computer has all the drivers it needs and that they are up to date. Making virtualization work on your computer is also a good idea. In most cases, these steps will help you solve common issues. It can also be easier to use Windows Sandbox if you keep an eye on changes for your Windows hardware and make sure everything is in good shape.
If you’re still having issues, you could contact Microsoft Support or look at community sites where people share their knowledge and help. Remember that the best way to fix the “Windows Sandbox Failed to Start” problem is to be proactive and patient. You won’t have any trouble using this useful feature on your Windows computer once you get it fixed.
Question and Answer
You can get help by going to Microsoft’s Support page. There are group forums, virtual helpers, and a way to get in touch with Microsoft Support. It’s a good spot to get help with any Microsoft problems.
Check the error message for error numbers or more information. These can help you figure out what’s going on. Use the Internet to look for the error code and find methods that are designed to fix it.
Windows Sandbox can have problems when the graphics drivers are old or don’t work with Windows. To fix this, all you have to do is get the latest version of your GPU’s graphics drivers. It’s a simple way to get better results.