Hello,

I have a Lenovo IdeaPad laptop N580 with Windows 8.1 64-bit.

Starting about 4 days ago, my laptop randomly while I'm playing video (on youtube) freezes and plays a loud buzzing sound. The problem is only be fixed by me force-shutting down the laptop. Originally, when this problem started, I received an error upon startup that said "unable to start the dolby audio driver. Please restart the computer or reinstall the driver if the problem persists." I tried updating and reinstalling the driver, but the problem wasn't fixed. I also tried troubleshooting the audio recording and audio playback. The error message stopped showing up during startup, but the problem still persisted. I also checked for any Windows updates, and there were none. I also tried looking at the Event Logs, but weirdly at the last time it happened there was no event recorded 10 minutes before or after it happened. The most recent "warnings" that appear on the log are source: DNS Client Events, event id: 1014, general: Name resolution for the name lenovoblogs.com timed out after none of the configured DNS servers responded. 

Another warning: source: Wininit, event id: 11, general: Custom dynamic link libraries are being loaded for every application. The system administrator should review the list of libraries to ensure they are related to trusted applications. Please visit http://support.microsoft.com/kb/197571 for more information.

Another warning: source: Kernel-PNP, event id: 219, general: The driver \Driver\WUDFRd failed to load for the device ROOT\LENOVOVHID\0000.

I have no idea what any of these mean or how to fix them or if they are the cause of my problem.

I then tried running a memory diagnostics and a virus scan (no viruses came up). I also tried re-installing the drivers for Windows 8.1, but when I re-installed the video drivers, it said I already had the most updated drivers. By googling it seemed like what I needed to do was re-install the chipset drivers, but there was no link for me to re-install the Windows 8.1 chipset driver because it says it should have been downloaded when 8.1 was installed...

I have no idea what to do next. Sometimes the problem happens right when I play a video, and sometimes it happens only an hour after a video has played. Please help me. I have a skype interview on Wednesday, and I can't have this problem messing up my interview.

Thank you.