
Thanks for trying out Win10 on your Inspiron 620 machine, trip47. My family and I bought the Dell Inspiron 620 back in late September 2011 with pre-installed Win7 SP1 that has onboard Intel HD Graphics 2000 (Sandy Bridge) and Conexant CX20641 Smartaudio HD. I have tried asking Dell the question but they do not seem interested in the many many Inspiron users across the world. It has taken a few days to get the machine running ok but restoring the system tasks is complex and the best way to fix this and I assume the recovery image will be a full restore using the system back up discs I made when the machine was new. This did not come without problems though, the factory installed OS image has been removed and all system scheduled tasks have been corrupted. The next day no sound again and very grainy video, after a couple of unproductive hours I restored the machine back to windows seven. After a little more playing around the sound came back on (not sure why).

The next start up came with no sound, I tried updating drivers with no luck, I then tried the front headphone jack and surprise, the sound was fine. All seemed ok although the video playback was strange, I assumed codecs would need updating. I do not quit for those who are polite and cooperative.I have the Inspiron 620 and tried the windows 10 update. _ Windows MVP 2010-20 Millions helped via my tutorials and personally in forums for 12 years. Thoroughly research any product advertised on the sites before you decide to download and install it. Watch out for ads on the sites that may advertise products frequently classified as a PUP (Potentially Unwanted Products). The pages appear to be providing accurate, safe information. Standard Disclaimer: There are links to non-Microsoft websites.

If you'll wait to rate whether my post resolved your problem, I will keep working with you until it's resolved. Feel free to ask back any questions and keep me posted. There's a strong possibility Microsoft will develop it's own driver or modify the next version to keep a major hardware component from deprecating prematurely. If not then in the next Version if the driver malfunctions see if you can install the last driver in Compatibility Mode: They'll be under a lot of pressure to provide a driver, but I'd not be in any hurry to get Version 2004 installed due to all the other problems and no new features anyway: I'm Greg, an installation specialist, 10 years awarded Windows MVP, and Volunteer Moderator, here to help you.
