How do I uninstall Ubuntu on my lap top and install windows 10 upgrade?

[Windows Central Question]

Cannot find windows 7 app on lap top which has Ubuntu os. Windows 7 was
on it at one time. I want to upgrade to windows 10.

 

[Giddora]

Ask the person that installed Ubuntu to kindly restore your Windows 7 OEM-install on it and update to Windows 10 from that.

 

[tgp]

If the laptop came with Windows 7, there should be a sticker with a product key on it somewhere. You should be able to download the Windows 7 ISO from Microsoft's website. Burn the ISO to a DVD or install it on a USB drive, and then install Windows 7.

 

[Laura Knotek]

You'll need to repair MBR after removing GRUB. uninstall - How to remove Ubuntu and put Windows back on? - Ask Ubuntu