Unfortunately we have no feature to exclude the specific folders when using "Back up selected files and folders". So please choose individual folders that you would like to back up.
On the other hand, if it is not "Back up selected files and folders" but "Back up my computer", we can use the following registry key.
For instance, there are 2 folders on D: like below. We create a backup job for D drive with "Back up my computer".
Then, we can exclude files in D:\test01\02\*.* and subfolders during volume backups of D drive.
To exclude them, we add below in the registry key FilesNotToSnapshot.
Data: D:\test01\02\*.* /s
When backing up D drive after restarting "Volume Shadow Copy" service, we can exclude the only files in D:\test01\02\*.* and subfolders.
Caution: If you use this key, the files in D:\test01\02\*.* and subfolders will be excluded even if backed up by any backup sofotware (Not only System Recovery but also Windows backup or 3rd party backup software).