A: Yes, without reinstalling. Run DISM /online /Set-Edition:ServerStandard /ProductKey:YOUR_KEY /AcceptEula .
512 MB (Minimum), though 2 GB or higher is recommended for GUI installations. windows server 2012 r2 iso download iso 64 bit
Never trust a downloaded ISO blindly. Corrupt downloads or malicious modifications lead to blue screens or security breaches. After downloading, verify the hash. A: Yes, without reinstalling
For virtual machines, simply mount the ISO directly to the virtual DVD drive. verify the hash. For virtual machines