These problems might require that you reinstall your operating system. Machine is a Sony Vaio. After I have saved the key to my desktop and restarted my computer I tested to see if my drive was working and luckly it was! Sunday, January 4, Sunday, August 19, 8:

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Has anyone else noticed this? Have confidence and just ignore the cautious notes. I never found a driver or something like that, but I found the solution here.

Saturday, November 28, 8: Note You may also see an UpperFilters. Tuesday, February 3, 2: Reasons for this error include a device driver that is not present: It dosen’t do dvds and is weird but the Matshita driver is near impossiable to find, help, please.

Panasonic (Matshita) UJ slimline Superdrive

Saturday, November 21, 5: Thursday, November 13, 8: Thursday, March 6, 4: Proposed as answer by igor lalic. I’ve tried all the usual suggestions including: You can imagine my surprise and disappointment at finding nothing but negatives for it. Monday, September un-850, 6: Just followed easy stps on a Toshiba Tecra A9 1 yr old and so far so good.


I wanted to try your way, but there are no UpperFilters or LowerFilters in my registry. How about if i copy the registry of someone who made it work? That issue also u-j850 to me. Run is under accessories.

At least I got a good 9 months out of mine. This suggestion worked like a charm. It sorted the problem.

HELP!!! Matshita UJ-850 DVD Drive Not Recognized In Notebook

I am not very happy. Why might this be happening??? Your information fixed my driver!

Sunday, August 19, 8: What fw version do you use now? Monday, July 28, 5: Friday, May 29, Tuesday, November 17, Tuesday, October 14, It will force a restore, even if you don’t have a restore point set up already. Saturday, January 3, 1: So, how do I fix this? Matsudhita speed of this application is something that you will love and admire since it lies up to 24X speed.

This works for Microsoft Vista Home Premium.