Motherboard + CPU change, "need to uninstall Windows" -question.

[PotatoComputers]

I currently have factory build Asus- computer and I have upgraded RAM, PSU and GPU. Only things left are the motherboard and CPU. I have A10-7800 and my budget only cuts for AMD FX-8350 and Asus M5A99X EVO R2.0 ATX AM3+ Motherboard (300€).

My question is, can I uninstall Windows 10 and do the "fresh start" without touching my D-drive?
I have all my games and stuff in there. The games I can always install but that still leaves me 500gb of other stuff... I really can't store them anywhere else. I don't want to lose my pictures and other important things.

Will uninstalling Windows leave D: alone and only touch C:? It is the same hard drive.
Here is my situation: http://imgur.com/a/nigMX

Edit: I have GTX960 OC and 12gigs of RAM. Other budget friendly (300€) suggestions to mobo and cpu are appreciated.

 

[Colif]

Before you swap motherboard/CPU, do the first step here: https://support.microsoft.com/en-us/help/20530/windows-10-reactivating-after-hardware-change

Once motherboard/CPU are in the PC, and win 10 reinstalled, do step 2 ofd that link to reactivate. There is a chance it won't work as prior to update 1607, replacing motherboard/CPU counted as a new PC to Microsoft. You may need to call them after fact and see if they reactivate it for you

Use the Windows 10 media creation tool and make a Win 10 installer as it will have right version of Win 10 to allow reactivation

Its not a question of removing, its more a question of putting win 10 back on hdd. The installation process would remove win 10 but it may also ask you to remove drive D as well.

What version of windows was on PC before? If it had win 8 on it there is a chance win 10 will let you keep the partition that D drive is on... If, however, you had win 7 on PC before, it will want you to delete all partitions on the drive before win 10 will install

its because the drive formats win 7 & 10 use are completely different, and mutually exclusive.

I would get a 250gb ssd and use it for windows and then just delete win 10 off the old hdd and use that 149gb for something else. You cannot merge it into D as its in front of D drive on the disk, can only merge space if its behind the partition you want to add it to.

Alternate is buy a 1tb external hdd and copy everything you want to save off D onto there - might be cheaper than a ssd