Saving emails from Orange mailbox to a computer

Good evening

For klsmailbackup:
Installation
1. In Downloads, double-click on klsmailbackupx.x.x.
2. In The editor could not be verified, click on Run.
3. In License agreement, check I accept the agreement.
4. Confirm by pressing Enter.
5. In Information, confirm by pressing Enter.
6. In Select Destination Location, confirm by pressing Enter.
7. In Select Start Menu Folder, confirm by pressing Enter.
8. In Select Additional tasks, check Create a desktop icon.
9. Confirm by pressing Enter.
10. In Ready to install, confirm by pressing Enter.
11. The installation begins.
12. In Completing the KLS Mail Backup..., uncheck Launch KLS Mail Backup.
13. Confirm by pressing Enter.

Set up and back up
1. On the Desktop, double-click on KLS Mail Backup.
2. In Click OK to continue, confirm by pressing Enter.
3. In Add Items, click on the browser used (e.g.: Chrome).
4. Right pane, uncheck:
History / Saved Forms and Passwords.
5. At the bottom, click on Add.
6. Left pane, click on the email client used (e.g.: Mozilla Thunderbird).
7. Scroll the table down.
8. Right pane, uncheck:
Saved Forms / Search Index / Cookies / History.
9. At the bottom, click on Add&Close.

10. At the top of the window, click on Properties.
11. In Location Settings, click on the folder icon.
12. In Select a folder, double-click on the second drive (e.g.: E:).
13. Double-click on the user account folder (e.g.: Alexia (C:)).
14. Click on Create a new folder.
15. Enter a name (e.g.: KLS Mail Backup).
16. Click on OK.
17. In Backup File Name, enter a name (e.g.: Internet and Email Backup).
18. Left pane, click on Backup Type and Versions, right pane, click on Full.
19. In the list, click on Full (no versions).
20. At the bottom, click on Save & Run.
21. The backup begins.