You say you are trying to download transactions but windows says there is a problem uninstalling? That does not make any sense. It appears that windows is trying to uninstall Quicken.
Can you verify your question?
You may want to try to install the mondo patch for 2016 as it sounds like your Quicken program is damaged.
Are you running on Windows 10? Did you recently install Windows 10 or the Anniversary edition? This process is known to damage the Quicken program.
If you have Windows 10, I suggest following this article using QCleanUI to reinstall Quicken.
If you do not have Windows 10, just install the mondo patch available here.
so, so, tired of this . Maybe some one should create a trustworthy financial program for those of us who don't really use all the bells and wistles
Quicken has been going down hill for some time. Seems that the installed user base has become their beta testers. :-(