If any Adobe Product (Reader, Photoshop etc.) is asking you to log in, follow the steps below to rectify the problem.
Note: please close any Adobe application before proceeding with the steps below.
1. Click the Start menu;
2. In the 'search programs and files' box start to type 'software';
3. In the results at the top of the menu, you should see 'Software Center', open this;
4. In the Software Centre, select the Adobe CC Licence 2018 icon;
5. Click Install;
6. Once the patch has been installed, close the Software Centre and run the Adobe application again, the login box should not show.