The Queen will make Windsor Castle her main home, a source claims.

The Queen would usually go back to Buckingham Palace in October following her summer break in Balmoral. Instead she will return to Windsor Castle, according to the Sunday Times.

https://www.dailymail.co.uk/femail/article-8655385/amp/The-Queen-make-Windsor-Castle-main-home-wont-return-Buckingham-Palace-year.html