Hi Everyone. This is my very first post, I must apologise if this has been discussed 10,000 times. My wife has an acer aspire 4315 laptop, it if quite new, she only uses it for ebay (to spend my money!) and email. There has been no other software installed, until today. I have installed some software for a digital camera, it said, " you must restart for changes to take effect" I did, but now I get the blue stop error message everytime. I don't have a boot/recovery disk and can't go to system restore because no restore points were made. Trying to start in any mode, safe, command prompt etc does not work either, is there any other way? Even if I can get into it to remove the camera software that would be great. Ps, the start up repair does not work either. John Denim.