Windows 10: Bootlooping issues after deleting ubuntu partitions

Hello, so yesterday I want to delete my ubuntu dualboot from my system, so I just format the partition of the ubuntu, But after I restart my laptop, I've found that now I can't boot up into windows, sometimes I got an error like, No such filesystem, or simply my laptop would turn off and rebooted againI already tried using- chkdsk D:/ /f from usb-bootrec /fixmbr-bootrec /fixboot

:)

 

W7 Hard drive partition issue

to get rid of that 100 meg windows partition that setup creates for you on a new install on a blank hdd:

- press shift+f10 when on the partition management screen in setup <-- this opens a command prompt
- diskpart <-- start the windows command line partition management tool
- list disk <--- list the installed hdds in this computer for the next step
- select disk 0 <- might have to replace 0 with the number of the correct disk
- clean <-- this will erase all data on the disk you selected one step up- dont use the wrong disk!
- create partition primary <- creates a primary partition taking up all space on the drive, adjust the command if necessary
- exit, exit to exit diskpart and the command prompt
- click refresh in partition manager and select your newly created partition and install to that

 

Cannot Boot After Deleting Ubuntu Partition

I used to work on my PC which had a C Drive (partitioned with Windows and Ubuntu) alongside an E drive for other storage. I deleted the Ubuntu partition and after rebooting the system, it told me that there was a grub error - 'Error: no such partition".
After looking up what this might be, it seemed to be that the Ubuntu partition included some of what was needed to boot Windows 10. How can I solve this? I have tried bootrec.exe /FixMbr, which said that it was successful, bit then when I tried bootrec.exe
/FixBoot, it said 'Access Denied'. What can I do? Thanks in advance.

 

WIN10 Repairing bootloader after deleting second Ubuntu partition

I had my system set up with both Windows 10 and Ubuntu. I decided to only use Windows on this PC and deleted the Ubuntu partition, thinking I could just boot up Windows afterwards...

There are many tutorials out there that I tried, but nothing helped. I KNOW that a clean install would solve my problems, but in my case i would have a whole lot more problems because I have many programs through my university and it would be a real pain to set them all up again.



I tried to follow this guide: Tutorial

It works until i get to "create partition efi size=100"

The message in cmd is: "MSR and Efi partitions are only supportet on GPT disks. Convert the selected disk to GPT and try again"

I don't want to mess up even more so your help would be greatly appreciated!

list disk shows

disk 0 (main disk, 931GB size, 2048Kb free)

disk 1 (usb stick)

list partition shows

partition 1 (primary, 50Mb)

partition 2 (primary, 930Gb)

partition 3 (recovery, 515Mb)