Windows 10: how to remove a second windows install on a MBR drive when my primary is on a GPT

hello i did look on internet how to uninstall a 2nd windows on internet but all them are in dual boot option when my situation doesnt i dont see it in my boot option as a old windows but kmow it is still install on my D drive

:)

 

GPT vs MBR for SSD OS Disk ? (win7 install)

I do not understand.

GPT is designed almost exclusively to allow huge arrays. The genesis of windows useable GPT drives goes back to Windows XP x64.

UEFI does not require GPT to boot. UEFI is the BIOS, functionally. It runs before any disk is touched.

As far as booting, stick with MBR on your SSD. There is no 2TB+ SSD on the market, and you're unlikely to have a RAID 0 array that large. Windows 7 defaults to MBR, for so many good reasons it isn't funny.


I haven't the slightest idea about where you linked UEFI and GPT. If you've got a large array as your boot drive you might have to cross this bridge, but given the difficulty I'd stay as far away from it as possible. MBR isn't old, it's still the primary windows drive formatting for a darn good reason.

 

GPT vs MBR for SSD OS Disk ? (win7 install)

If I have UEFI BIOS, I'm going to use GPT. Only reason why I wouldn't is because the drive is shared between new and old computers (MBR has broader compatibility support). I wrote a guide how to install Windows on GPT here:
Installing Windows Vista/7 on a GUID Partition Table

No. Either you install on GPT via EFI boot or you intall MBR via BIOS boot. You can't install Windows and change it later.


Not only does GPT support booting to partitions larger than 2 TB, it also means the computer is booted using EFI which means it has a lot more memory to work with during startup. It should theoretically mean startup is quicker on EFI/GPT than BIOS/MBR.

 

GPT vs MBR for SSD OS Disk ? (win7 install)

So I cannot use all the new bios UI and fancy pre-boot evironiment if i don't use UEFI-boot ? With or without GPT?


I just want to use the UEFI without GPT: so can I UEFI-boot and install win7 with MBR?

Now I actually asked the correct question I wanted. Sorry it took time to figure out.