Windows Server 2012 R2 Boot Repair 📥 🏆

If your server boots via UEFI:

DISM /image:D:\ /cleanup-image /restorehealth /source:E:\sources\install.wim windows server 2012 r2 boot repair

diskpart select disk 0 clean (Wipes partition table) convert mbr (or convert gpt) create partition primary size=50000 format fs=ntfs quick active (For MBR only) assign letter=C: exit bcdboot C:\Windows /s C: If your server boots via UEFI: DISM /image:D:\