Computer won't let me open anything?

Yesterday night I went on my computer and out of nowhere it changes all my icons to the Internet explorer 'e' on a paper, suggesting that it's a download or file. So I went to click on what I usually would to go on internet explorer and a screen popped up asking if I wanted to run or save the file. It's never done that to me before, and it shouldn't be. The only thing I can really do is look at my pictures, but if I try to open anything else up it'll ask me to save it and open it like that. But even then, it won't open it up, the same screen will pop up asking me to do the same thing. I tried running a system restore on it but it won't even let me open up that either. I have windows 7. If anyone could help me I'd really appreciate it!

It might be problem some virus or a trojan attack and you need to have an anti virus program to clean the virus.

Install antivirus to protect your PC from threats and some attacks results in data loss.

If you can bare try to buy a pro version or Internet security which suites your security.

Avast anti virus is the free anti virus providing with 1 year license and if you have Internet anti virus program will update automatically.

Usb keyboard connected on laptop problems.?

I bought new usb keyboard and connected it on laptop. When I try to press space/shift/ctrl/esc/all f`s(f1,f2,f3)/enter its always open internet, if internet opened its just going to home page. Please help me

Either may be the problem of keyboard or that might keyboard need any drivers and check the manufacturers site for driver if any

and some keyboards works with software provided by the manufacturers and if you are using and windows old version, they need the drivers for that particular keyboard.

some functions and short cuts provided by the keyboard may not work until you install the drivers of that particular keyboard.