Windows 10: 'netsh' is not recognized as an internal or external command, operable program or batch...

Does anyone know the fix to this? I just randomly opened my laptop one day and it started doing this.I've tried like most fixes I've seen on the internet so I just came here to see if anyone knows how to fix this.

:)

 

'notepad' is not recognized as an internal or external command, operable program or batch file.

When I try to open notepad using the command prompt, the following line shows up:

'notepad' is not recognized as an internal or external command,

operable program or batch file.

Please help me resolve it.

 

"'explorer.exe' is not recognized as an internal or external command, operable program or batch file."

Well, the title explains it, i keep getting the error in "'explorer.exe' is not recognized as an internal or external command,

operable program or batch file.", other sources say i should change the "%path% variable back, but i dont know how to change it back!

 

adb is not recognized as an internal or external command, operable program or batch file.

I am trying to install an apk to my computer and get the error "adb is not recognized as an internal or external command, operable program or batch file." I typed 'adb install "--path--"'.

Am I installing my apks wrong or how should I fix this issue?