If you've completed these steps due to a Device Manager error code, you can view the device's status to see if the error code is gone. It may be necessary to reinstall any programs designed to utilize the device you've removed the UpperFilters and LowerFilters values for.
If you still have a yellow exclamation mark in Device Manager even after removing the UpperFilters and LowerFilters values in the registry, head back to our troubleshooting information for your error code and look into some other ideas. Most Device Manager error codes have several possible solutions. Actively scan device characteristics for identification. Use precise geolocation data. Select personalised content. Create a personalised content profile.
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I'm here to help you with your problem. What is the exact make and model? Check if they then work. If not Details required : characters remaining Cancel Submit. Was this reply helpful? Yes No. Sorry this didn't help. Thanks for your feedback. While trying to get the cd drive to show up I broke my registry, I need help to be able to boot my pc again not the cd drive.
My main issue with resetting is not knowing which data I will lose since there is no official information about what is kept and what is removed.
I'd rather take my time to find a way to restore windows to an earlier point which would require me to fix the error I get there or maybe restore the registry file to its base state and maybe copy the file from another computer. Like that I could access all my files and drives from my computer while being in Windows.
I navigated to where I deleted the two keys and re-created them with the names, values and types matching what they were when I deleted them this part requires knowing what those values and types would be. All that was left to do now was unload the hive and reboot the system and tada. Everything back to normal as if I never broke anything. I have the same question Report abuse. Details required :. Cancel Submit. Andre for Directly Independent Advisor.
How satisfied are you with this reply? Thanks for your feedback, it helps us improve the site. In reply to Andre for Directly's post on May 5, Best regards, Sandro. You asked if there was a guide on how to delete the upper and lower filters, which I provided in the link above under the Let Me Fix it Myself section.
Now go to the "More Information" section. View solution in original post. My apologies for neglecting to follow the link you left this morning.
I mistakenly thought it was a link to a "Fix It" tool I had tried earlier. At any rate, your instructions were spot on and my cd drive is back up and running. Thanks much. I recommend you bookmark that link, because for whatever reason, Microsoft has removed it as an alternative to the automated fix-it page you get when you do a search.
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