Windows 10 shutting down

[JD 96]

Pc keeps shutting down when idle.

 

[Maurizio Troso]

Pc keeps shutting down when idle.

Is that a notebook? Check your battery maybe faulty
Elsewhere go to Contro Panel -> Energy saver -> manage your settings when pc is in stand by

 

[Chintan Gohel]

Pc keeps shutting down when idle.

can you check for OS updates?
And which device do you have?