so all of a sudden some keys are not working on my HP Notebook using windows eight point one ... the numerical one doesnt work hence I typed one lol .. I googled this and it talks about needing a program to fix the system registry ... there would appear to be many but hell can I trust them in terms of downloading them and letting them run .. see cant even get a question mark to work lol .. only numbers working on top keys are 5 and 6 .. shifts arent working .. omg ... help

