My google page is gone from i.explorer, montzila and google chrome.
A page with a name mystartsearch is everywhere.
How can I remove it?
I uninstall it from programs but nothing....

please help...

I am reading that this is a browser hijacker.

I would run a thorough scan with Malwarebytes (you can download a free version, if you don't have it already); according to some articles I read, that should get rid of it. If further steps turn out to be required, this will have been a good start.

It is a browser hijacker - the link below contains the instructions to remove it.

Remove Mystartsearch.com (browser hijacker removal guide)

Thanks for the help.