Windows 10: Check if Windows Defender feature Ransomware protection is enabled. Configure it to add Quicken as an "allowed app" without turning off Ransomware protection:https://community.quicken.com/discussion/7857675/faq-windows-defender-controlled-folder-access
Old Quicken Patch downloads 2000+
When running an old, unsupported Quicken version you may no longer be able to download bug fixes (patch files) directly from Quicken. However, they are still available here: US version: http://www.quicknperlwiz.com/quickenpatches.html Canadian version: http://www.quicknperlwiz.com/quickenpatchescanadian.html If clicking on Help / About Quicken does not show the highest Release number available for your version (year), as shown on this webpage, download and install the appropriate file(s) from the link above.