Delete Dual Boots Ubuntu From Windows 10

References

How to Uninstall Ubuntu from Windows Dual Boot Safely

How to delete GRUB files from a Boot EFI partition in Windows 10

How to Uninstall a Linux Dual-Boot System From Your Computer

Delete Ubuntu partitions in Windows 10

• Open Windows disk management tool
• Delete Linux assigned partitions (look at the partition which doesn’t have a file system and drive number)
• Right click the partition and select Delete Volume
• Deleted partition will be available as a chunk of free space

Create and use a recovery drive in Windows 10

• Open Windows and search Create a Recovery Drive
• Ensure that USB drive you will be using is formatted as NTFS

Boot Windows 10 from recovery drive

• Restart PC and press F11/F12 to get BIOS boot mode
• Select boot from drive
• Repair your computer - Troubleshoot - Advanced options - Command Prompt
• At the command prompt, type bootrec.exe /fixmbr

If the option above doesn’t works

• Get BIOS mode, select boot from Windows and boot into Windows OS
• Open command prompt as Administrator and follow the commands list below, key in line by line

Gist

diskpart
list disk
sel disk 0
list vol
sel <vol no>
/* <vol no> is a number which your FAT32 file system column */
assign letter = {letter}
/* assign any letter to {letter}  to make it easier to work with */
exit
cd /d{letter}:
ls
cd EFI
ls
rmdir /S ubuntu