I'd really appreciate some help. My mother bought a laptop 18 months ago and I installed firefox on it for her and safer browsing. In February she suddenly found it did not work at all (the fox). An error message appears saying that the dll usp10.dll is missing. We have tried uninstalling re-downloading and installing firefox (newer versions). It does not work. She tried to do a system restore and it came back saying unsuccesful. She now uses internet explorer but the drop down menues don't work. When on a website (like booking a plane ticket,) the drop down box is blank.
I also can't get Java to work. I uninstalled it and downloaded the latest Java, but when I try to install it I get "error25099" and the same message about the missing dll.
I got advice to run sfc /scannow, but it did not find/fix anything as far as i can tell.
I know that downloading dll's from the net is dangerous, I have found a copy of usp10.dll on the drivers disk that came with the laptop, how do I know this is the right file? and where should I copy it to on the hardrive if it is?
Thanking you in advance for you patience and assistance