In Windows Settings –> System –> Storage –> Advanced Backup options, select Back up using File History instead of going to OneDrive as mentioned above. Once you click the Add a drive button, you'll be prompted to select the external drive to back up to. Choose the drive you have connected to Windows.

You can also backup Windows to external drives and restore them if the original are lost, damaged, or delete. Insert or connect the external drive into your computer.

In Windows Settings –> System –> Storage –> Advanced Backup options, select Back up using File History instead of going to OneDrive as mentioned above.

Once you click the Add a drive button, you’ll be prompted to select the external drive to back up to. Choose the drive you have connected to Windows.

When you select a drive, all is set. Every hour, Windows will back up everything in your user folder (C:\Users\username). To change which files get backed up or how often backups happen, go to More options.

More options give lets you set up how and when files are backup.

When you’re done, save and exit.