A disabled Backup setting can have different causes. It may be a missing destination drive, an account or policy restriction, a stopped service, or confusion between File History, Windows Backup, and the older Backup and Restore tool.
Note the exact screen and message. File History needs a usable external or network destination. Windows Backup may require a Microsoft account and supported sync settings. Backup and Restore (Windows 7) is a separate legacy feature. Troubleshooting the wrong feature can waste time.
On a managed work or school PC, a policy may intentionally disable backup choices. Ask the administrator rather than bypassing security controls.
Do not wait indefinitely for a disabled toggle to become available. Copy irreplaceable files to a separate healthy drive or create a backup with a trusted alternative. Verify that the alternate backup includes the right folders and can be read. Later, repair the built-in feature if you still need it for ongoing protection.
A separate file backup can protect personal data without changing Windows policy settings.
Step 1. Connect a healthy external drive and open Qiling Disk Master. Under Backup and Recovery, choose File backup.

Step 2. In the folder tree, select the user folders and other important data locations. Expand folders and check the selected paths; there is no separate Add Folder button in this screen.

Step 3. Open the destination chooser, select a folder on an external healthy disk, and click OK. Verify that the destination is not the same disk as the files being protected and has enough free space.

Step 4. Review the task name and selected folders, then click Proceed. Wait for the backup to finish. Verify the image and test a sample restore; revisit the disabled Windows setting separately.

Should I disable security software to make backup work? Not as a first step. Check the message, destination, account, and policy before changing protections.
Does Qiling File backup replace a full system image? No. It protects selected files; use System backup for an image of Windows and boot partitions.
Identify the disabled Windows feature and its actual blocker, protect files immediately with a separate backup, then repair the built-in configuration if needed.