Rescue mode is a powerful, independent troubleshooting environment for Linux and Windows servers. It allows you to perform maintenance and repair tasks even when your primary operating system is inaccessible.
Rescue mode boots your server into a special lightweight operating system that runs entirely in RAM. Because it runs completely separately from the OS installed on your drives, you can access your files and perform critical repairs without any data being automatically modified.
root password on Linux or an Administrator password on Windows.fsck on Linux or edit the Windows registry to fix configuration issues.