After Clean/Reformatted drive new OS, what should do to have a smooth installation?

[weijas]

Hi All

My PC recently run into corrupted OS and unable to restart.  Send for repair and came back clean and refomatted Drive and new OS.

What should I need to do step by step to reinstall DCS world in order to have a smoothe running DCS.

I have installed my previous DCS World in another Drive and have backup my "save game" to other drive.

All these years having been playing DCS flawlessly, and these happened to  me now my OS failed me.

Any help/suggestion  would be appreciated.

Thank You