System snapshots are the perfect complement to traditional backups. They can save the day when your computer goes awry or an update goes south. Here's how they work.

If you see the error System Configuration cannot save the original boot configuration for later restoration. Boot Changes will be reverted. The handle is invalid, you ...

Managing authentication and authorization in a large-scale network is a challenge: the passwords need to be set and rotated every now and then, access to certain configuration settings needs to be ...