Yesterday, I had problem downloading Movie Maker from Microsoft website so that I contacted Microsoft Answer Tech for assistance through Live Chat. He asked me for permission to share my computer screen with him remotely so he can see the process of my downloading.  At the end, he was not able to solve my problem. Under my Bookmark, I have “Banks” folder containing the websites of my banks.  Today I noticed that the websites of those banks disappeared from my Bookmark. Is it possible for him to tamper with my Bookmark? Are there any possible scams involved?