If you copy your User profile intact including hidden AppData files then you'll have your settings, but since settings can be a corruption path I would start fresh with a new User account just copying in the active User folders.
Easiest way to do this is plug in the external backup or connect via network, open the User folder needing import, on Organize tab Select All, then on highlighted group leftclick>hold to drag the whole group slowly to the lefthand Explorer bar and place into corresponding User folder using Library shortcut if easier. Don't release the left click until the Explorer bar stops expanding as it eventually will and hypertext confirms you are copying to correct folder or sub-folder.
Once you're sure you have everything in place you can delete the old account in Control Panel>User Accounts.