Always keep three copies of your data, on two different types of media, with one copy stored offsite. Use an automated cloud backup service like Backblaze or OneDrive to constantly mirror your music folders in real-time.
This tragedy, while painful, is often the catalyst for a musician to start taking digital hygiene seriously.
Look for file types common to your DAW:
Highly effective at identifying lost audio formats like .wav , .mp3 , and DAW project files (like .flp or .als ).
Go to your system settings and create a for guests or family members.