Some of HP's (and other laptop makers) fingerprint readers say that they have not been detected after being awaken from a sleep mode or another standby mode. A restart usually fixes this until the next time, this is hardly a solution, you paid for a fingerprint reader, you should be able to use it properly.
Here are a few solutions to try to fix your fingerprint reader that says "Fingerprint reader not detected."
- Make sure that all drivers and programs assoicated with the fingerprint reader. Check the manufactures website for these.
- Restore your computer to Factory Settings. This can be done by restarting your laptop and pressing the F9, F10, or F11 key (depending on your model and manufacturer). Be sure not to install any updates using either Windows Update or HP Support Assistant (or any similar programs). Use the laptop for a few days and make sure the device works. Go into Windows Update and a few updates at a time, install them. Use the laptop for a few days and make sure it's working. Once you find out which update is affecting your device, you can use System Restore to set back your device. The only downfall is that you cannot install this update to use your Fingerprint reader.
- If all else fails, call your computer manufacturers and ask them about warranty/return information.