This can be a problem. I just had my system crash, and when I was forced to 'restore' windows, I lost all my apps and data, including the Profile data stored in my 'Documents' folder.  I was fortunate that I had copied that file to an external drive location, and was able to restore the data.  If I had not done that, I would have lost all my Profile data back to 2011.....

I strongly recommend that you REGULARLY save your "My Profile Data" file to an external drive for safekeeping.  Most commercially available backup software can be programmed to do this, even though Intuit and Profile have not yet seen the value in this.