4 Fixes: Invalid Partition Table on Windows 7, 8, 10, 11

What does Invalid partition table on Windows 7 mean?

In Dell Technologies, a post said "How to fix an Invalid Partition Table error on a system with a Solid-State Drive (SSD)?” If you also want to solve this problem, please read and follow our fix. This passage can be helpful.

First, What does Invalid partition table on Windows mean? Customarily, the error generally appears on startup with a black screen, especially if you are trying to install Windows 7 on an SSD from scratch or using a custom image. When this error suddenly displays when you boot your computer, it usually means:

What does Invalid partition table on Windows 7 mean?

Wrong boot order/sequence

Outdated BIOS

Two or more partitions marked as active partitions on the hard drive.

MBR (master boot record) is corrupted or damaged.

Bad sectors on the system partition

How to fix Invalid partition table on Windows 7, 8, 10, 11

To fix Invalid partition table on Windows PCs, here are 4 methods.

Fix 1. Create a bootable USB to rebuild MBR

The corrupted or damaged MBR will lead to the Invalid partition table on Windows 7. To repair it, you just need to create a WinPE bootable USB and then rebuild the MBR with AOMEI Partition Assistant. This smart partition manager also helps you to recover lost data from complex scenarios, effectively manage partitions, and allows you to install Windows 11 on a Windows 7 PC.

You can download it for free and experience its powerful management capabilities.

AOMEI Partition Assistant

The Best Windows Disk Partition Manager and PC Optimizer

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Windows 11/10/8.1/8/7

Step 1. Install and run it to a normal Windows computer with the same system on yours, like Windows 7.

Step 2. Connect a USB flash drive with the PC, and execute the program. Select Make Bootable Media under Tools. Then hit Next.

Step 3. Choose a USB Boot Device to create bootable media. Press Proceed.

Step 4. Then boot your corrupted Dell Windows 7/8/10/11 PC from the bootable media. Then the AOMEI Partition Assistant will execute automatically. And click Rebuild MBR at the drop-down menu of the selected hard drive.

Step 5. Select the right MBR type for your Windows 7/8/10/11 Dell PC, hit OK.

Step 6. Then click Apply at the top left corner to restore the corrupted partition table.

You may find an invalid partition table error on Dell, Acer, Lenovo, HP, etc. has been fixed.

Fix 2. Update BIOS to the latest version

If the BIOS is outdated, you may encounter Invalid partition table on startup issue. To update, you can run UEFI setup. First, insert your USB containing the BIOS files. Then enter the BIOS. If you can’t get into BIOS on Start up only Boot Manager, you can click to read the solutions.

Here's how you'll do the rest:

Step 1. Connect the USB and turn on your PC.

Step 2. To enter the BIOS, press F10, F12, or F2 (depending on your PC/motherboard). Or you can run UEFI BIOS Boot Options Manager provided by AOMEI Partition Assistant to enter BIOS.

Step 3. Once in BIOS, boot from USB.

Step 4. Once on the USB drive, choose the BIOS files.

Step 5. Confirm when the BIOS prompts.

Once you confirm, the BIOS will upgrade in around 2-3 minutes. Once completed, your BIOS will be upgraded, and your computer will restart in Windows. Now, your BIOS has been updated, you can check if the Invalid partition table disappears in your Windows 7, 8, 10, 11 computer.

Fix 3. Check hard drive

You will get the Invalid partition table error on Windows 7, 8, 10, and 11 if the partition table is stored in bad sectors. This means that the partition table is not valid. You could use that multifunctional software AOMEI Partition Assistant to scan and check for bad sectors on the hard drive and fix invalid partition table.

Step 1. Select Disk Surface Test on the main window after running AOMEI Partition Assistant.

Step 2. Click Start to check bad sectors.

Fix 4. Change the boot order from BIOS

When you install Windows 7 from a new SSD but don't change its boot order/sequence, you may encounter invalid partition table on Windows 7, 8, 10, 11. You can follow the steps to correct it.

Step 1. When you open the BIOS setup utility, you'll usually see a menu with a number of choices. To move around in the menu, press the arrow keys on your keyboard.

Step 2. Look for a section labeled "Boot" or "Boot Order." The exact name and location may vary depending on your BIOS version.

Step 3. Within the "Boot" section, you'll see a list of available drives or devices. This list represents the boot order, with the topmost drive being the current boot disk.

Step 4. Select the current boot disk and press Enter or follow the instructions provided to change the boot disk.

Step 5. From the list of available drives, choose the new boot disk. If the desired drive is not listed, ensure it's properly connected to your computer. Use the designated keys (usually + or -) to move the new boot disk to the top of the boot order.

Step 6. Save the changes and exit the BIOS setup utility. Look for an option like "Save and Exit" or "Exit and Save Changes."

Your computer will restart, and it should now boot from the selected disk if it contains a compatible operating system.

Conclusion

The Invalid partition table on Windows 7, 8, 10, 11 can be effectively solved by following our guide. AOMEI Partition Assistant is your good friend in managing disk and partition. For example, you can use it to install SSD in laptop without reinstalling Windows, delete, merge, clone, resize partitions, upgrade Windows 7 system hard drive, fix Windows 7 100% disk usage, and so on. For Windows Server users, this powerful software offers the Server edition.