I have windows 7 ultimate, 64 bit SP1 on my Thinkpad, have realtek audio on my laptop which is upto date and has no problem, however I am facing a very unique problem.
Sound / audio from my laptop randomly plays sometime and sometime it doesn't , for instances when the machine starts the windows sound plays every time, however one started the other sounds like USB pluggin sound , folder click sound and the sounds / audio in music and movies don't play,
Sometime the movies plays without audio and sometime its shows this error, Windows Media Player error C00D11B1.
I have tried updating the realtek driver but it always says up to date. when I checked with Lenovo they said that hardware is perfectly fine and play sound when tested from control panel, there must me some issues with the software in windows.
can any one guide me on how should I resolve this issue ? thanks

Sound / audio from my laptop randomly plays sometime and sometime it doesn't , for instances when the machine starts the windows sound plays every time, however one started the other sounds like USB pluggin sound , folder click sound and the sounds / audio in music and movies don't play,
Sometime the movies plays without audio and sometime its shows this error, Windows Media Player error C00D11B1.
I have tried updating the realtek driver but it always says up to date. when I checked with Lenovo they said that hardware is perfectly fine and play sound when tested from control panel, there must me some issues with the software in windows.
can any one guide me on how should I resolve this issue ? thanks

My Computer
- Computer type
- Laptop
- Computer Manufacturer/Model Number
- Lenovo Thinkpad L430
- OS
- Microsoft Windows 7 Ultimate 64-bit 7601 Multiprocessor Free Service Pack 1
- CPU
- Intel(R) Core(TM) i3-3110M CPU @ 2.40GHz
- Motherboard
- LENOVO 24666FQ
- Memory
- 2.00 GB
- Graphics Card(s)
- Intel(R) HD Graphics 4000
- Sound Card
- (1) Realtek High Definition Audio (2) High Definition Audi
- Screen Resolution
- 1366 x 768 x 32 bits (4294967296 colors) @ 50 Hz
- Hard Drives
- (1) HGST HTS725050A7E630 (2) ZTE MMC Storage USB Device
- Antivirus
- Avira
- Browser
- Internet Explorer 11
