Have you ever tried running Windows on a new system? Sometimes, you may find that Windows 11 won't boot. There can be several reasons for this. If you've installed Windows 11 correctly but it still won't start, it might be worth checking out some fixes to resolve the issue.

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Why won't my Windows 11 start up?

As we've mentioned before, there can be various reasons why Windows 11 won't start. Not all of them are related to the Windows OS itself.

Some reasons why Windows 11 might not start include:

• Unstable power supply – Your computer requires a stable power source to start up properly. An unstable power supply might prevent Windows from starting up correctly.
• Virus or malware attack – This is one of the most common reasons why Windows 11 fails to start or runs abnormally.
• UEFI and Secure Boot disabled – As a new security measure, you need to have Secure Boot enabled to ensure smooth operation of Windows 11. Check your settings to confirm it's not disabled.
• Damaged boot drive – Issues with the boot drive can also lead to Windows 11 not starting. You can try booting from a USB drive or another bootable drive.

7 Ways to Fix Windows 11 Stuck on Boot Screen

Here, we've handpicked the most effective methods to help you deal with Windows 11 getting stuck on the boot screen. Before trying these methods, make sure your device is connected to a stable power source.

How to Fix Issues with Windows 11 Not Starting?

Can't boot Windows 11? Try these fixes

1. Startup in Safe Mode: Try restarting your computer and booting into Safe Mode, which can help diagnose and fix potential issues.
   • Press the F8 key immediately after turning on your computer and select "Safe Mode."
   • If F8 doesn't work, attempt to hold down the Shift key while clicking "Restart" as Windows starts.
2. System Restore Point: Use a System Restore point to revert Windows to a previous working state.
   1. In Safe Mode, open "Control Panel" > "System" > "System Protection."
   2. Click "Restore Point…" and follow the wizard's instructions.
3. Run Troubleshooters: Built-in troubleshooters in Windows might help resolve the issue.
   1. In Safe Mode, click "Start" > "Settings" > "Update & Security" > "Troubleshoot."
   2. Select "Startup Issues" and run the tool.
4. Check for Hard Drive Errors: Use the chkdsk command to check for hard drive errors.
   1. Open Command Prompt (as an administrator) and enter: chkdsk /f /r C:
   2. Follow the prompts and then restart your computer.
5. Update or Reinstall Drivers: Some drivers might not be compatible with Windows 11. Ensure all drivers are up to date, or try uninstalling and reinstalling them.
6. Contact Microsoft Support: If none of these steps resolve the issue, consider contacting official Microsoft Support for professional assistance.

Before trying the advanced options to fix a Windows 11 that won't start, try some quick solutions first.

• Disconnect all external and peripheral devices – Some peripherals might prevent Windows 11 from starting. Unplug everything, and then try turning on your computer.
• Connect your computer to a stable power source – If you suspect an unstable power supply, plug your device into a reliable electrical outlet.
• Run an antivirus scan – Perform an antivirus scan on your device. If you can't start it up, you may need to consult your antivirus software provider for alternative methods to scan your device.
• Disable Fast Startup – The Fast Startup feature can sometimes cause startup issues, which might be one reason why you can't open Windows 11.

After trying all these options, consider the following advanced solutions to help you with the Windows 11 startup issue.

Solution 1 - Diagnose the issue with Boot Repair Tool

When an operating system like Windows 11 fails to boot or load on a computer, it's often due to issues with the system itself, such as a damaged MBR (Master Boot Record), inability to load the BCD (Boot Configuration Data) file, or incorrect boot order.

Reliable partition management software - tools Partition Master Professional offers a reliable feature - Boot Repair, that allows all Windows users to easily fix operating system startup issues with a few clicks. Download it now and follow the step-by-step guide below to resolve the "Windows 11 won't start" issue:

Step 1: Connect the USB flash drive/external hard drive to a working computer, launch the Partition Master (RE) tool, and click 'Create Bootable Media'.

Step 2. Select the tools and add-ons you need. Then, click "Next."

Step 3: Select your mobile device, then click “Start” to write the image to your USB drive/external hard disk. You can also burn the Windows ISO file to the media.

Step 4: Acknowledge the warning, and wait for the creation process to finish.

Step 5. Connect the bootable drive to the problematic computer and press either “F2” or “Del” to enter BIOS. Set the WinPE bootable drive as the first boot device, then exit by pressing “F10.”

Step 6: The computer should boot to the WinPE desktop. Open BootRepair, select the system you want to fix, and click "Repair".

Step 7: Wait for a message that says the process is complete, then click OK to finish the startup repair process.

(OS repaired screenshot)

And don't forget to share this amazing tool online to help more Windows fans troubleshoot and fix startup issues like pros:

Fix 2 - Check and enable UEFI and Secure Boot mode

In addition to a Trusted Platform Module, you'll need Secure Boot enabled to upgrade to Windows 11. Secure Boot is a built-in security feature in modern hardware and UEFI firmware devices designed to create a secure environment for the Windows startup process, preventing malware from infiltrating during boot-up.

To enable Secure Boot, follow these steps:

Click on “Start,” and then search for System Information. Under “System Summary,” select Secure Boot.

• If it says ON, it's enabled. If it says OFF, it might be disabled, or your device might not support it.

If your BIOS is in UEFI mode, you can easily enable Secure Boot.

To enable Secure Boot, follow these steps:

• Go to Settings, then to the Update & Security section. • Choose Recovery. • Under Advanced startup, click Restart now.

• When the computer restarts, select the Troubleshoot option.
• Navigate to Advanced options > UEFI Firmware Settings.
• Click Restart to edit the UEFI firmware settings.
• Locate the Secure Boot option and enable it.

Save your changes and exit.

Fix 3 - Boot into Safe Mode and run Windows Automatic Repair

To use this method, follow these steps –

Shut down your computer completely. Press the power button to turn it back on. Force a shutdown by holding down the power button. You may need to force a shutdown several times. On the fourth startup, allow your computer to boot up normally.

You should be able to enter <b>Recovery Mode</b>.

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In the “Advanced Repair” section, do the following: –

Click on Advanced options. Follow the path Troubleshoot > Advanced options > Startup Repair.

按照提示操作，这个工具就会尝试修复你的启动选项。

Fix 4 - Execute CMD Commands to Resolve Windows 11 Startup Issues

The Command Prompt or CMD can help you fix the boot record to try and resolve issues where Windows 11 won't start. The Master Boot Record (MBR) could be one of the problems with your Windows 11 installation that's causing it to fail to start up correctly.

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Insert the Windows installation media and start from it. Then, go to **Repair your computer** > **Troubleshoot** > **Advanced options** > **Command Prompt**.

Open Command Prompt from Advanced Startup

Please enter each of the following commands one at a time, pressing the ENTER key after each:
• bootrec /fixmbr
• bootrec /fixboot
• bootrec /rebuildbcd

This should resolve the Windows 11 boot issue. You'll need to restart your computer.

Fix 5 - Use System File Checker (SFC) and Deployment Image Servicing and Management (DISM) to fix Windows 11 not booting

If you find the steps above a bit too much, your next best option is to use a manual service that can help you fix Windows 11 startup issues. In this case, a remote assistance tool might be your best bet.

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While you can opt for local technical support services, considering remote assistance tools can be a worthwhile option, as they provide reliable and prompt solutions.

Remote assistance is considered one of the excellent options for getting on-the-spot support at home, and connecting through TeamViewer should provide you with even more help. Additionally, professional technical support services are available.

Here are some tips on how to efficiently utilize your Windows 11 disk and optimize the operating system's performance: 1. **Disk Cleanup**: Regularly use the built-in "Disk Cleanup" tool to delete temporary files, system junk, and unnecessary programs, freeing up disk space. 2. **Defragmentation**: While modern SSDs don't require defragmentation, if you're using an HDD, performing this periodically can enhance read and write speeds. 3. **Update the System**: Keep Windows 11 up-to-date by installing all critical system updates for optimal performance and security. 4. **Disable Unnecessary Startup Programs**: In Task Manager, disable infrequently used or non-essential startup applications to reduce resource consumption during system boot. 5. **Adjust Visual Effects**: In "System" settings, choose "Adjust for best performance" or customize visual effects to balance performance and appearance. 6. **Turn Off Background Apps**: In "Settings" > "Privacy" > "Background apps," turn off apps that don't need to run in the background to conserve system resources. 7. **Increase Virtual Memory**: If physical RAM is insufficient, consider increasing the virtual memory (page file) size. 8. **Optimize Disk Partitioning**: Ensure your system partition (usually C:) has ample space to prevent performance degradation due to low disk space. 9. **Use an SSD**: If possible, install the operating system on an SSD, as it offers significantly faster read and write speeds than traditional HDDs. 10. **Install Reliable Antivirus Software**: Protect your system from malware and viruses to enhance overall performance. 11. **Regularly Restart Your Computer**: This helps release memory and system resources, addressing potential performance issues. 12. **Limit User Account Control (UAC) Notifications**: Lowering the UAC level can reduce frequent pop-ups, but be aware that this might affect security settings. By following these suggestions, you can make the most of your Windows 11 disk and optimize its operating system performance.

To avoid such issues, like the Windows 11 startup problem, you can choose to follow some tips to get the most out of Windows 11.

Partition your system drive, making sure to leave ample space for your C: drive.

Efficiently partitioning your hard drive is crucial for optimizing the performance of the Windows 11 operating system. Make sure your hard drive is properly partitioned to ensure that the system drive has enough space to run Windows 11 smoothly.

For most correct partitioning needs, using a disk partition tool is definitely your best bet, especially for Windows 11, as it can help you convert an MBR system disk to GPT without data loss.

Step 1: Download and run AOMEI Partition Assistant.

Step 2: Launch the disk converter, then choose “Convert MBR to GPT” and click “Next” to proceed.

Step 3: Select the MBR disk that you want to convert to GPT, and click "Convert" to start the conversion process.

It also offers a range of risk-mitigation options, including resizing, moving, merging, migrating, or copying disks or partitions.

Optimize SSD Performance with 4K Alignment

If you have an SSD operating system drive on your computer, it would be wise for you to optimize SSD performance correctly, which can be achieved by using the right 4K alignment software.

This could be due to the accumulation of junk files on your SSD, which affects your computer's performance. A powerful tool like Partition Master can help you effectively optimize and boost your SSD's performance.

Step 1: Click “Toolbox” and then choose “4K Alignment”.

Step 2: Select the drive you want to align, then click the Start button.

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"Create a system backup" in English is "创建系统备份."

Creating a system backup is a practical way to protect against future Windows 11 boot issues. A bootable backup contains your entire system, including the Windows installation, settings, apps, and files. This kind of backup can be invaluable when faced with hardware failures, upgrade problems, virus infections, or other severe errors that might corrupt your system and cause issues.

Here are the steps to create a system backup on Windows: 1. Open the "Control Panel": Click the "Start" button, then type "Control Panel" in the search box and click on the "Control Panel" application from the search results. 2. In the Control Panel, select "System and Security". 3. Within the "System and Security" interface, click on "Backup and Restore". 4. In the "Backup and Restore" window, click on "Set up backup". 5. Next, choose the location where you want to save your backup files. Typically, you would select your primary hard drive, which is usually the "C:" drive. 6. Then, you can choose what to back up. You can opt for "Let Windows choose (recommended)" or "Let me choose." If you're unsure, it's recommended to choose the former, as it will automatically back up important system files and personal files. 7. Select a backup schedule. You can choose to back up daily, weekly, or monthly, depending on your needs. 8. After confirming your settings, click "Save settings and exit." The system will then begin creating the backup, which might take some time, depending on the amount of data you've chosen to back up. 9. Once completed, you can view and manage your backups in the "Backup and Restore" window. Make sure your computer is connected to a stable power source while creating a system backup to prevent interruptions. Also, remember to update your backups regularly to keep your data current.

1. Open **Settings**. 2. Go to **System > Storage**. 3. Find the **Backup** option under **Advanced storage settings**.

• Go to the Backup and restore section.

Select the backup you want to restore, and then follow the on-screen instructions.

Conclusion

担心 Windows 11 无法启动？不用担心，解决这个问题并让 Windows 11 成功启动可能很简单。上述的建议和教程应该能通过多种方式帮到你。

After you fix the issue and get Windows 11 back to normal, don't forget to follow our recommendations to prevent this or any other problem from happening again in the future.