Update destroyed my data!

  • I updated today a few minutes ago, and when I went to open one of my files (made on Notepad and saved there regularly, opened with no other programs) it cam back as just [NULL] repeated countless times, as a little icon instead any text. this is the second time this has happened, and in both cases I have lost all the information on these note files, and the second time updating has erased all of my backup files. I don’t know what is happening or why, only that I have just lost 3 months of work to this. Please, please, PLEASE help me fix this - I cannot replace some of this information.