I have my computer for a while, a year or three, but lately he is quite slow. Additionally there is a problem with the battery, which is probably a wrong setting; that problem would be solved by putting back. factory settings I also think there is a lot of malware on my computer, where I am also from same. Therefore, I would like to restore the factory settings, but exactly how that should be me after some searching on the Internet is not yet clear. Loss of files is not so bad; some important documents through the mail I send to myself and programs can I reinstall.
When I connect an external microphone to the jack, it is not working. I can see it in the "Sound" tab, but the levels is very low. I have tried with several microphones.