Windows 10: 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: TutorialIt works until i get to "create partition efi size=100"The message in cmd is: "MSR and Efi partitio

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How to delete bootloader the Ubuntu in Windows when installing parallel 2 operating system ?

I've delete cleaner ubuntu installed in parallel with Windows 10 on the hard drive

I've delete the Ubuntu partition in disk management and merger the hard drive

But the ubuntu bootloader it the still into exists ?

Do how to delete it ?

***Post moved by the moderator to the appropriate forum category.***

 

Booting to Ubuntu with vista bootloader

I have looked around the web for help, but that never really explained what i hopefully want to accomplish.
I have a laptop with vista x64, where i made two additional partitions. One for windows 7 and one for linux which i can fiddle around with.
And because im only gonna use linux on/off and propably uninstall it re-install it now and then, i dont want it to use linux's bootloader.
So on the third partition i installed ubuntu without the linux bootloader and of course vista's bootloader wont recognize it. Only vista and win 7 appears.

So how can i make vista's bootloader see ubuntu?

 

Win10 cannot recognize Ubuntu disk (partition)

I installed Win10 and Ubuntu on two M.2 socket SSDs respectively.

I am able to access Win10 disk in Ubuntu; however, I cannot access Ubuntu disk in Win10.

In "disk management", the Ubuntu disk is there, but upon right click only "Delete volume..." and "Help" are clickable. Moreover, the "File System" appears black, the "Status" is "healthy (primary partition) and % Free = 100%; that is to say, this disk is
not recognized by Win10.

Then, how should I access files on Ubuntu disk while I am using Win10?

Thank you!