Hello.....I have HP dv4-1415tu Laptop.....yesterday I have installed windows 7 but after that whenever m trying to start my windows its showing only Black screen with curser.....but when m putting "Hiren Boot" CD into DVD rom its starts and working normal.....basically its working only with CD....I m not able to understand what is the actual problem!! is there any problem with OS or something else......kindly help
Thanks,