Step 2: Navigate yourself to Microsoft Store. It will automatically open the Settings app with Apps & Features tab. Here, type ms:settings:appsfeatures and hit Enter.
Step 1: Press Windows key + R to open the Run command box. So, follow the steps to register yourself: Try to re-register yourself in the Windows Store, but you must keep in mind that some locally stored user-preferences could get deleted during the process. When tried, this method to speed up Microsoft Store downloads resolved the underlying issue. Once the installation is done, relaunch the Store to find out the improvement in download speed.
If any updates are available, you can find it here, and you can click on the button of Install Now from here. As the Settings open, click on Update & Security and check for Windows update.