I built a computer for my son during the COVID lockdowns and accidentally enabled Compatibility Support Module (CSM) in the BIOS. I managed to enable TPM, but I'm now wondering if I should partition the existing 2TB drive for a UEFI setup, or if I should just buy a new NVMe/SATA drive for a fresh install of Windows 11 and switch the boot drive to the new one. I tried to convert the drive to GPT using mbr2gpt, but it won't let me since it's the boot drive. If partitioning is possible, I'd really appreciate a step-by-step guide, preferably simplified. Any advice would be great!
2 Answers
Before you make any changes to your BIOS or partition your drive, make sure you have backups of all important data. Just to be safe! If you want to partition your 2TB drive for UEFI, you might want to check out some tutorials specific to your motherboard model. It can sometimes involve using tools like Disk Management to shrink the current partition, but just remember that it can be tricky and might lead to data loss if not done carefully. Proceed with caution!
You can convert your boot drive using the command 'mbr2gpt /allowfullos', but if it's giving you trouble, double-check that you’re running the Command Prompt as an administrator. It's a common hiccup. Also, if you've been struggling with that command, maybe it’s time to consider just getting a new drive. A fresh install could save you a lot of headaches and give you a clean start.
Glad to hear you figured it out! Sometimes it's the small formatting details that throw you off. Just make sure everything is backed up before any further changes.
I tried that command multiple times from both CMD and PowerShell, but it kept failing. I think I finally got it through after figuring out the formatting! Now I just need to reset the motherboard. Thanks for your help!