Intercept this and improve the audio and video performance of your Lenovo ThinkPad T420 laptop by upgrading to the latest graphics drivers software for windows. If you like playing your favorite music, videos on your Lenovo ThinkPad T420 laptop, it is very frustrating to have a malfunctioning media system as a result of faulty audio and video or graphics drivers. Upgrade Lenovo ThinkPad T420 Laptop Execution with New Audio, video Drivers Download for Windows This drivers download is absolutely free on our site. Upgrade PC with new Audio and Video drivers for windows Lenovo ThinkPad T420 Driver Download for Windows 7,8.1 and Mac
Once the known issue occur on your side, we could restore to previous Windows 10 1909.Download latest Lenovo ThinkPad T420 laptop drivers for windows 7,8.1,10 on both 32 bit and 64 bit to resolve all issues today. If it can't find Windavailable feature update package, it is no more able to upgrade to Windows 10 2004, we could to upgrade to Windows 10 20H2 with that website. I recommend to create a system restore point or create a system image, then upgrade to Windthrough Settings\update & security\Windows update to check for update.įor more information, please refer: Backup and Restore in Windows 10 So we suspect your device might not affected by the known issue. Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.Īccording to Lenovo website shows, your device Lenovo Thinkpad T420 have not related 8.65.47.53, 8.65.56.51, or 8.66.0.0 through 8.66.89.00 for chdrt64.sys or chdrt32.sys driver. If the Answer is helpful, please click " Accept Answer" and upvote it. Please go to Device Manager, and find this driver, right click and make a capture for Properties\Driver page. And blue screen behavior is different from your loss of audio functions. However, I noticed the known issue is regard with another driver version for 8.65.47.53, 8.65.56.51, or 8.66.0.0 through 8.66.89.00 for chdrt64.sys or chdrt32.sys which is different from yours.
Seems same with what you said known issues regarding Conexant Audio drivers I noticed there is a known issue on Errors or issues during or after updating devices with certain Conexant audio drivers
I noticed your system version is Windows 10 1909, did you rollback from Windto Windows 10 1909? Or upgrade failed and persists as Windows 10 1909?
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