I have not been here for a while which is a good thing isn't it? But now I have a problem....
My system: Windows 7 Home Premium 64bit SP1
CPU intel Pentium 2.6GHz, Mother board: Intel DH61CR
8GB RAM (DDR3), Graphics: Intel HD, Audio: Realtek High Definition Audio
I have Realtek High Definition Audio which has worked for 6 years on my computer until the other day. I noticed it after Windows did its second Tuesday update. Realtek High Definition audio in the Device Manger has the yellow explamation mark by it and the Device status says...
"Windows cannot verify the digital signature for the drivers required for this device. A recent hardware or software change might have installed a file that is signed incorrectly or damaged, or that might be malicious software from an unknown source. (Code 52)"
I ran the Update driver function and it comes back and says the driver is up to date. I also used the browse function for up dating and selected the same driver that is installed and I get this driver is not recommended because it can not be verified that it is compatable with your hardware.... ect
Windows trouble shooter can not find a problem.
When I open sound in the control panel it says No audion devices installed.
I did a system restore to a point prior to the Tuesday Windows update and the yellow explmation mark was gone so I checked if I had sound by using the Change System Sounds, and it did work. Next day I am back to no sound.
I found and ran the "Microsoft Fixit audio playback trouble shooter" --- it came back and said "we detected some problems with your system and were unable to apply fixes"
The Driver software Installation program ran as a result of running the Fixit (at least I persum that is why it ran) and said it was installing software for the Realtek HD audio but that FAILED. It recommended consulting the device manufactureer but the Realtek site is no use. They have a driver update program you can down load but it did not mention an audio driver in the 3 that was out dated or missing. But even if it did mention the audio driver you have to pay for the program to really use it.
I also ran the Windows Add HardWare Wizard::: selected the driver that was listed for Realtek HD audio in Device Manager. It went through the motions of installing the sofware and completed but when Device Manager is checked there is now TWO Realtek High Definition audios listed both with the yellow exclamation mark.
I also ran scan sfc /scannow but it found nothing wrong.
I searched using the driver # listed in Device Manager. Came up with a newer driver and ran the install. After completion I checked the Device Manager and the yellow exclamation mark was gone. I went to the Change System Sounds feature but could not test a sound (grayed out) went back to Device Manager and there was the yellow exclamation mark. I did think about uninstalling the Windows updates but I am worried something else might go
wrong if I did. Any one have any ideas.