I have the same issue as addressed in
The cause is that Quicken disables the ability to do any Quicken activity (the Blank Screen) until you purchase the newest version of Quicken or get the newest subscription to Quicken services. These are the steps taken to determine this:
[1] I did a clean update to Win10 and reinstalled Q2017.
[2] I opened Q2017 and saw a blank screen.
[3] I opened an existing .qdf file (File -> Open Quicken File) and the blank screen continued.
[4] I exited and reopened Q2017 and saw the standard interface flash before a blank screen appeared.
[5] I looked at C:\Windows\QUICKEN.INI.
[6] I looked at C:\Users<username>\AppData\Local\Quicken.
[7] I looked at C:\Users<username>\AppData\Roaming\Intuit\Quicken.
[8] I opened Q2017 and created a new .qdf file (File -> New Quicken File).
a. A popup appeared:
"Your Quicken Connected Services have expired.
Connected Services for Quicken 2017 expired on April 30, 2020.
You will no longer be able to ...
Upgrade to a new Quicken Membership to restore your Connected Services ..."
Of and by itself the quoted statement does not preclude further use of Q2017. My guess is that Intuit decided to disable all service use when an install was done. There is no way to key in your Q2017 username or password to authenticate your credentials. There is no way given to ensure that this, for example, is not a pirated copy. Intuit just turns off the interface, effectively disabling all further use, and requires that you purchase a later Quicken product or a subscription.
The upshot is that there is nothing that can be done. The only solution is for Intuit to allow continued use.