Question Can't install Windows on my m.2

[XavierPT]

Hey guys. Today I updated my BIOS to the most recent version but after it was done the pc went to BIOS and didn't boot windows that I had previously installed on my m.2. Because of this I tried to install windows again and when it asks what drive to install on and I select the m.2 it says that it can't be installed because: "The select disk has an MBR partion table. On EFI systems, Windows can only be installed to GPT disks.". At this point I don't know what to do to be able to use my pc again so if someone knows how to fix my problem I would really appreciate.

 

[Lutfij]

Welcome to the forums, newcomer!

Make and model of your motherboard? If you're on a laptop, please pass on the make and model of your laptop and it's SKU. Seems to me that you might've had CSM enabled in BIOS prior to installing the OS on your drive. Does the drive you want to install the OS on, have other partitions on it, with mission critical data?