: After selecting your language and keyboard, click Repair your computer in the bottom left corner.

: Follow the prompts to format/repartition disks if necessary, then click Finish to begin the restoration process. System State Recovery (Within Windows)

Restoring Windows Server 2008 R2 generally refers to either a (fixing configurations) or a Bare Metal recovery (restoring the entire OS after a crash). Full Bare Metal Recovery

Use this if the OS is functional but you need to revert registry settings, Active Directory, or system files.

Use this method if the server will not boot or you are migrating to new hardware. You will need the original Windows Server 2008 R2 installation media (DVD or ISO).