Couple of questions if I may;
Was Windows 10 an upgrade or a clean install.
After the upgrade or clean install did you install the latest drivers for the chipset and any network devices.
Do you actually use Edge or another browser.
Download then run Speccy (free) and post the resultant url for us, details here, this will provide us with information about your computer hardware + any software that you have installed that may explain the present issue/s.
Edit by phillpower2: Just noticed your earlier thread here regarding migrating favourites from Edge to another browser, if you intend changing browsers it serves no purpose in troubleshooting Edge memory leakage, please advise as to which thread you wish to continue with.