I am a long time Classic user. I have stored my files on my cloud for a few years. I have had no problems until two days ago when I tried to open my file and it said "cannot open file". I tried a number of things the support page recommends, copying the file on the local drive, making sure it's not read only, validating the file, etc. I called and spent 45 minutes with Quicken support and the rep said there was something blocking the file from opening. I turned off all my norton security features but same problem. I called Norton and spent an hour with them and they said they think it's a Quicken problem. I went back three days to a restore point before my latest windows update but I still have the same issue "cannot open file". I also went to an older Quicken file which was on my hard drive - thinking maybe my cloud files were corrupted - same problem! I am out of ideas. The only other thing I can think of is that the newest edition of Quicken is conflicting with something. I had Quicken 27.1.60.5 prior to all of this happening!