Quicken runs with list versions of windows. In case you were using old version of windows you have to ensure that the same is compatible with Quicken. If not you will have to change and upgrade to the version with which Quicken works. This is important because Quicken will not work properly in case you are not using the right version of Quicken. Also, make sure that you have compatible version of Internet browser. If you are using a particular version of windows and you have Quicken installed in your computer, you will be able to upgrade to higher version of windows with no problem. In case of problems Quicken has got solutions to fix the issues. To get more help and solutions contact Quicken customer support.