But I cannot run server manager in safe mode. I tried the command console and the power shell, using Remove-WindowsFeature but both tellsme that server manager cannot be run in safe mode.

How Windows Safe Mode works Safe Mode is one of several troubleshooting tools in Windows. Screenshot: Microsoft Safe Mode essentially attempts to start Windows in a stripped-down, basic state.

Topic pretty much says it, I had a pc from a friend and it wouldnt show safe mode in the boot menu. There were 2 options, normal boot and windows repair. Did I miss something?