Is it possible to clean install windows 10 in dual boot with ubuntu?

So, I have like a laptop with installed windows 10 first then installed ubuntu 14.04 LTS alongside windows.

ubuntu grub boots up asking me for boot options each time i restart.

So if I want to clean install windows 10 while ubuntu is still installed will it affect ubuntu and its data?.

I use ubuntu for work and windows when i am home.

I have upgraded windows 10 using windows update but now i feel like doing clean install of the anniversary update but afraid of losing ubuntu and work data or failure of ubuntu booting after reinstalling windows 10.

Can anyone suggest ideas or solutions?.

Thank you.

Sure you can - no problem at all. Just boot from USB and pick the C partition when it asks you where to install Windows. You could (and I did) format the partition at this point. Make sure also that your WinRE recovery partition (if you have one) is big enough (500MB).

I dual boot with OSX and Windows and did a clean install of 1607 like that and it worked fine. It didn't touch the other OS at all. It did disable my bootloader (I use rEFInd not grub) but that happens every time I update either OS and it is just a matter of re-registering it.