Google Chrome was the default browser that came with my laptop.

I have a Google account which I was logged into Chrome with. Someone else logged into my chrome using their account which has resulted in everything being lost.

I logged in again to find my theme, bookmarks, history, most visited sites were gone and now instead of 'piling up' under the symbol already pinned to the Windows 7 task bar it opens a second symbol on the taskbar and 'piles up' under that instead which has never happened before. I have tried unpinning and repinning which didn't work.

I have tried syncing my account numerous times to no avail, I have searched high and low on the Chrome forums for any kind of answer. I have tried accessing that thing in documents to try and recover my bookmarks but I can't find them (I had hidden files enabled etc etc).

I really really want it back how it was as I had a lot of bookmarked sites and quick access to sites and everything was how i used it, and I hate that it now opens a new icon on the taskbar.