billmowat said: Another note on the resolution of my problem: After a recent windows 10 update, the updater showed me an option for something called "Controlled Folder Access". This protects files, folders, and memory areas on your device from unauthorized changes by unfriendly applications (including ransomware). Seemed like a good idea, so I said yes, turn it on. Unfortunately, Quicken is not in the list of "good" applications, and therefore, windows prevents Quicken from writing to the Quicken data file. The toggle for this is found in Windows Security - Virus and Threat Protection - Manage Ransomware Protection.