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Fixing Windows Installation Errors With Windows Boot Manager

Here’s a step-by-step guide to help you resolve common Windows installation errors and fix the boot manager on your computer.

Symptoms:

Before we begin, identify the error messages you’re experiencing:

  • „Boot Manager“ or „No boot device found“

  • „Blue screen of death (BSOD)“ with an error code

  • System won’t boot into Windows

Solution 1: Basic Troubleshooting Steps

  • Restart your computer: Sometimes, a simple reboot can resolve the issue.

  • Check the Event Viewer logs: Open the Event Viewer by pressing the Windows key + R, typing „eventvwr“ in the Run dialog box, and selecting „Event Viewer“. Look for errors related to boot or system crashes. Check the log files for any error messages.

  • Run a System File Checker (SFC) scan: Use the SFC tool to check for corrupted system files: Press Win + R, type „sfc /scannow“ and press Enter.

Solution 2: Reinstalling Windows

If none of the above steps work:

  • Reinstall Windows: Go to the Microsoft Support website and download the Windows installation media (USB drive or DVD). Create a new bootable USB drive by creating a bootable drive using Rufus or another tool.

  • Install Windows 10/11 from scratch: Follow the installation wizard to select your language, time zone, and other options. During the installation process, make sure to choose „Custom“ and then „Repair“ option at the bottom of the screen.

Solution 3: Troubleshooting Boot Manager Errors

  • Check the boot order: Ensure that your PC has the correct boot order set:

* Windows is listed as the first device in the Boot Order.

* Press the key to select it when starting your computer.

  • Disable and re-enable the boot manager: Type msdtree.exe in the Run dialog box, then press Enter. Look for a folder with an „Boot Manager“ or „Boot MBR“ file. You’ll find this folder under „C:\Windows\Boot“.

  • Check for corrupted Boot Manager files: Use the System File Checker (SFC) tool to check for corrupted system files: Press Win + R, type „sfc /scannow“ and press Enter.

  • Run a System Restore: If you have System Restore enabled on your computer, try restoring it to a previous point when Windows was working correctly.

Solution 4: Advanced Troubleshooting

  • Check for malware: Run a full antivirus scan using an anti-virus program like Microsoft Defender or a third-party tool.

  • Disable any recently installed drivers: Disable all drivers in the Device Manager (Press Win + R, type „devmgmt.msc“ and press Enter).

  • Run the System Update Troubleshooter: Press Windows key + S to search for System Update Troushooter.

Additional Tips:

  • If you’re having trouble booting into Windows after installing or reinstalling it, ensure your internet connection is stable.

  • Be cautious when troubleshooting, as incorrect actions can further damage your system.

  • If none of the above steps resolve the issue, consider seeking additional help from Microsoft support or a professional technician.

By following these steps and troubleshooting solutions, you should be able to fix common Windows installation errors related to the boot manager.

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