Windows 8.1 became very slow and began suffering blue screen incidents particularly on Firefox. Could not refresh Windows 8.1 because it was downloaded and no key or disk provided. Eventually it died and computer would not work.
My computer is notebook HP Pavilion dv7-6b32us i7 and 8 GB RAM.
I had to reinstall Windows 8 and then reluctantly upgraded to Windows 8.1 again. I do not trust Windows 8.1 and it immediately exhibits previous symptoms of high RAM usage and 100% disk usage despite the fact I had significantly increased the disk page file size.
Blue tooth device and fingerprint sensor do not appear in device manager. There is just one unknown device appearing which does not fix itself because it does not identify the driver it requires.
I am tired of trying to fix these problems with Windows because nothing on MS web site helps. Neither does HP or Intel provide any solutions.
Windows 8.1 is a total crock and I do not trust it.
You may want to try HP’s Solution & Update Finder or download the drivers manually from this link: http://support.hp.com/us-en/product/HP-Pavilion-dv7-Entertainment-Notebook-PC-series/5145684/model/5189525/drivers
There is also the option to try with the Intel® Driver Update Utility.
If you still cannot find the drivers for some (non-Intel) components, it is possible you will have better results by searching their hardware IDs. In order to obtain them go to Device Manager, double click the problematic device (sometimes listed as “Other devices/Unknown device”), go to the Details tab, in the Property drop down menu select Hardware Ids, then try searching for the VEN# and DEV#. Be careful about third party websites offering drivers, some of them are not to be trusted.
I did all that multiple times and none of it had any effect.
The internet identifies a mysterious driver with exclamation mark as a Broadcom device but HP attempts to install a disk head parking utility.
None of the stake holders, intel, MS and HP have been helpful in resolving the problem. The internet appears to be littered with pleas for help with Bluetooth.
Another option to get drivers is via Windows* Update or from the device manufacturer. In this case: http://www.broadcom.com/support/
However, usually the best support is given with the operating system that came preinstalled with the computer.