Hi, welcome and thanks for sharing:
* Network firewall: no firewall in router enabled?
* Periodic malware scanners: any 3rd party Second Opinion Scanner would be we welcome.
* File and Photo backup, at least, a copy to external device would be welcome, also You can use here a cloud service: DropBox, Google Drive, One Drive, Mega, etc.
* System recovery: a full system image backup solution would be welcome here: AOMEI, Macrium, Acronins, Hasleo, etc.