If you see this message Invalid system disk, replace disk, then press any key When trying to start Windows, here are some troubleshooting suggestions you want to try.
This happens when your computer cannot find a hard drive to boot from or the hard drive shows no working operating system to boot from. Basically, it means that your boot disk or boot partition or data may have been corrupted or damaged which prevents your computer from booting normally.
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Invalid system disk, replace disk, then press any key
The exact error message is:
Invalid system disk, replace disk, then press any key. Reboot and select the appropriate boot device or insert Boot Medua into the selected boot device and press any key.
If you receive this error, here are a few things you can try.
1]Set Boot Disk is set as your first bootable device
Boot into your BIOS settings and make sure your startup disk is set as your first bootable device. You will see this setting under Advanced BIOS Features > Hard Disk Boot Priority.
Remember to save changes and exit. Changing the boot order usually helps.
BIOS is firmware. It is stored on a chip on part of the computer’s motherboard and is basically a set of instructions that run to help load the operating system.
2]Run ChkDsk
Run ChkDsk on the boot partition. You may need to boot your PC from external media to do this.
3]Repair MBR
Repair the master boot record using Bootrec.exe tool and see if that helps.
4]Run Autostart Repair
Boot into advanced boot options, then in Troubleshoot > Advanced options, select Auto Repair.
If you can’t do that, you’ll need to boot from your installation media. See this post if automatic repair fails.
What causes an invalid system disk?
If your computer cannot find the hard drive during startup, it displays a message like this. Even if you have a valid hard drive, your computer may sometimes display this error message. In such situations, you can follow these steps to resolve it.
To fix invalid boot disk, you need to change the hard disk boot priority first. If that doesn’t fix the problem, you can use the CHKDSK tool, which checks for any errors and fixes them automatically. You can also repair the master boot sector and use the automatic repair option from the Advanced options sign.
Hope something here helps you. If you solved the problem using another method, please share here for the benefit to others.
