@leocg We have one Windows login each, and still this problem occurs.

@burnout426 We have one account each. We logged her out and me in, and since then my stuff has stayed on her computer even if I log out and she logs in.
Did I misunderstand something?

I have the same browser as my gf, and we sometimes work or play games on each others PC's. Now, when she tries to use her sidebar and her bookmarks, she can't because my data overwrites hers. I am completely logged out of her computer, but my bookmarks and sidebar still won't disappear.

pls help