I have Windows 10.
I'm using "iDrive" to backup 600GB to an external hard drive (4TB) using USB 2.0.
Last time estimate it gave me was over 24 hours.
I need to block all my family (3 other users) from using the computer until the backup is finished.
My son also uses Steam remotely over the WiFi.
I will also settle on how to make the backup continue whether people are logged in or not (the backup is started in my account). (I'm performing a full backup of the C: drive, for the first time.)
How do I block other people from using the computer until the backup is finished?