Quick Windows reinstallation

Hello, windows became unstable and slow, can anyone tell me how to reinstall windows quickly and without losing any data? I read somewhere that it's possible to install windows in the unattended mode. How's that? What's needed for that? --~--~-~--~~~---~--~~ You

Quick Windows reinstallation

Hello, windows became unstable and slow, can anyone tell me how to reinstall windows quickly and without losing any data? I read somewhere that it's possible to install windows in the unattended mode. How's that? What's needed for that? --~--~-~--~~~---~--~~ You