hey there! i have a Windows 10 Pro PC and last month i sent my Asus MOTHERBOARD for RMA because of a defective RAM slot and i also changed my two RAMs. I will get a new MOTHERBOARD of that same H81 model. should i keep the existing WINDOWS i had on my PC or should i format my PC and reinstall it? and if i decide to keep it what will be the consequences? because i have a new brand new same MOTHERBOARD and RAM.