While you can back up data files to a network, you should not open or run Quicken on a network. Quicken is not designed to be used over a network or shared drive (such as OneDrive or Google Drive). Quicken for Mac users: For installation steps, click here. Note: If you're able to open Quicken but you're not able to get into your file because of problems signing in with your Quicken ID, you can find help for that by clicking here.
If you're unable to open Quicken for Windows after a recent product update, it's possible that an issue during the installation is preventing Quicken from opening.