Martin A said:
Been downloading transactions from Capital One for years. Now in trying to set up download, the entire Quicken freezes and I have to use control/alt/delete to shut it down
Have you tried restarting your computer after this happens? You may additionally try uninstalling the Quicken software using the steps listed in this Support Article, then deleting Quicken from the Program Files (x86) folder. You may then reinstall the software after following those steps using the steps listed here.
I look forward to hearing about your results, if you have the chance to check back in with us here on the Quicken Community.