Just recently upgraded my laptop to Windows 7 from XP and it works fine as far as my keyboard, and touchpad and things. But, I have no sound driver at all. I went to the HP site and looked up my sound driver and it was only developed for XP and doesn't work with Windows 7. I even tried the compatibility mode to run the driver and same thing. Some help would do a great deal for me right now.
Maxser,
Does your computer still actually have sound? And did you use Windows Updater? My soundcard driver was updated through their and I was all set after that.
System Manufacturer/Model Number iBUYPOWER W870CU OS Windows Seven Professional x64 CPU Intel Core i7-740QM @ 1.73GHz 6M Motherboard Intel PM55 Memory 2 X 4GB DDR3 677MHz Graphics Card ATI Mobility Radeon HD 5870 1GB GDDR5 Sound Card Realtek High Definition Audio Monitor(s) Displays 17.3" HD+/ FHD LED-backlight Screen Resolution 1920X1080
Keyboard Microsoft eHome MCIR 109 Mouse Finger Sensing HID-Compliant Mouse Pad PSU 43290mWh Intel Lithium-Ion Battery Case Cleveo W870CU Cooling 3 Fans Hard Drives Seagate 500 GB 7200RPM ATA Harddrive Internet Speed 100 MB/s Other Info Biometric Enabled
USB 3.0 Enabled
2.0MP Cam
Apparently this problem is wide spread. There is only an XP 32-Bit Driver (link) for your system. Your best bet is to install that via Compatibility Mode, though it sounds as if you've already tried that.
You could try this version of the driver as well. You still need to install via compatibility mode. Otherwise I suggest either buying a usb sound card or a new computer.