You might encounter a situation where you may not be able to boot, and you might keep getting an error Invalid Partition Table on Windows 11/10 computers. This could be caused by a recent change in hardware or software. It can also happen when your computer’s system firmware cannot find a valid or correct partition to start Windows from. If you cannot boot into Windows and get error Windows could not start or if you cannot install Windows and get Invalid Partition Table boot error, then this post may be able to help you.
Fix Invalid Partition Table boot error on Windows computers
To fix the Invalid Partition Table boot error on Windows 11/10 computers, we would like to suggest the following solutions:
1] Run Automatic Startup Repair
Most of the startup-related issues are caused by a damaged MBR or OS files. So the first step is to use Automatic Repair on your Windows computer to fix the error.
2] Rebuild MBR
If Startup Repair fails, then follow the manual method. You will need to boot into Advanced Startup Options and then use the command prompt to run some commands to rebuild the MBR.
3] Change BIOS Boot Mode (Legacy to UEFI)
To do this, restart your computer and repeatedly press F2 (or F10 / Del depending on your laptop brand like Dell or HP) as soon as the logo appears to enter the BIOS menu. Once in BIOS, find the Boot Sequence or Boot Mode settings and switch from Legacy to UEFI. Save changes, then Exit to restart your computer normally.
See if this helps.
4] Check Hard Drive Priority
If the boot mode is already set correctly, your hard drive may not be detected or may not be first in the boot order.
Enter the BIOS menu and ensure that your internal hard disk or Windows Boot Manager is listed and set as the first priority in the boot order.
If the drive is missing from the list entirely, turn off the laptop, open the back panel, and physically reconnect the hard drive or SSD to ensure a snug connection.
5] Use 3rd-party freeware
Use MiniTool Partition Wizard Bootable CD. This is an excellent tool to manage Partitions, and the best thing about this tool is that you get the bootable disk version.
You can download the ISO Image and burn it to a disk, then boot from it. It will prompt you to choose the program and screen resolution, so select the appropriate options. Then select your primary partition and from the right-hand panel select “Rebuild MBR.”
Sometimes the Windows loader drive won’t be set as active, and in those cases, you might have issues booting. So we need to mark the partition as active. In order to mark the partition as active go to Partition from the Menu bar. Then go to Modify and Select “Mark as Active”.
Sometime that option might be grayed out. In such cases, you might need to Set the Partition as Primary. Then you should be able to get that option. If none of the options work, then you might want to consider running Hard Drive Diagnostic to check the consistency of the drive.
Hope this helps!
Also read: Fix Boot Device Not Found error in Windows.
