My computer had lag (A lot), then I carried it for repair it. They successfully fixed it, however, it was complety cleaned. The archives are stored in an USB, but cookies, passwords, etc were lost forever....
Returning to the topic, some things were changed: [b]when I write I can't move the mouse[/b], and [b]the secondary keys are a mess[/b].
`` is ´´, ~ is ], Ctrl + 4 is ~~, # is ·. Does anybody know what is happening?

you might have a language setting like on some @ is "