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#160
If you don't mind doing a clean install and have backups, doing a clean install with UEFI should work for you.
Clean Install Windows 10
I asked because your Disk Management screenshot still showed the unallocated space.
It is required to have the exact same edition, version, and language of Windows 10 installation media for what you currently have installed to do a repair install.
Do you currently have the Enterprise edition installed?
this is the current picture:
The article says:
The installation media (ex: ISO or USB) must be the same edition and same or newer build as your currently installed Windows 10. If it's not, then the repair install will fail.
so I picked the Enterprise edition from the download link mentioned there.
And yes, my home PC is with Ent edition:
Hello! After converting my drive from Legacy BIOS to UEFI using this method (i mean, mbr2gpt / convert / allowfullOS), the "System Reserved" partition of the MBR still exists, and even became drive "E", visible and explorable from My PC (when before, naturally, it was hidden). Can I delete it now that I am in UEFI?
I briefly comment on the steps I did: First I had to delete partitions because it exceeded 3 and the method was not going to work. They were 3 partitions that I had not voluntarily created, in fact two of them I don't even know how they were there. They were small, blank partitions. I could not delete them either from the Disk Manager, nor with the Diskpart. So I did it with a software, with which I eliminated them very quickly and without problems. Then I also deleted the third extra partition, which was the one that the Samsung software had created on my SSD as "Overprovisining". Then I extended the windows partition to take advantage of the new unallocated storage. So finally I had 2 partitions left: "C:" and the System Reserved (that was hidden). I Then proceeded with the conversion via "mbr2gpt / convert / allowfullOS". For some reason the first attempt failed. It threw me an error but after Googling for a few minutes I didn't find anything clear, so I just tried again, and this second time it worked. I checked in various ways, and i was indeed on UEFI. However, after a while I entered "My pc" and noticed that there was an "E:" System Reserved drive.
In short, I can delete it, right?
Here the screenshots, Thank you very much!
PS: Excuse my English and screenshots in Spanish