.... I had forgoten that I have it running as a squelched task and WL restarted itself after 5 min if it gets accidentally shut down. ...
I have no idea what a squelched task is, but perhaps that caused your problem with the Microsoft update.
OK, I only lost about 16 hours of data. I was able to trace the problem to a Microsoft update. The auto update must not have done a safe shutdown of WL and corrupted the data, giving me 32 days in April.
If anyone has been able to read lost data on the Davis data logger I would appreciate a message as how to. Thank you all for your help R
If the archive is cleared, it is cleared. If the data is lost, it is lost.
I gather you have been running WeatherLink for a month or less, and "have become very disillusioned with WL".
By the way, how is your Fire Department weather project coming along?