External DVD player not working - no driver

isutami

Help! I'm having surgery soon and want to be able to watch some of my old favorite DVDs while I recover. Problem: when I plug in my external player it definitely turns on, but doesn't show in File Explorer.
Recap of posts on Microsoft community page:
Q: No internal DVD drive on laptop with Windows11, no DVD driver in Device Manager, command prompt trick didn't work, and nothing says IDE, ATA, or ATAPI in Device Manager... atapi in Registry Editor, but right click > New > Key doesn't automatically create Controller0. Renaming from NewKey1 that was created instead to Controller 0 and following directions about New Word and restarting doesn't work. Registry Editor "HKEY...08002BE10318" shows no LowerFilters or UpperFilters.
A1: Suggested I keep the external device disconnected, open Task Manager, click on the details, then connect device. Results: No "Unrecognized device."
A2: Said I need to make sure "get latest updates" is off for Windows (it was). Told me to obtain bios and drivers updates from Acer through a "shortcut to the update utility" on my system settings (no such thing). Went to Acer driver page and had no idea what I was supposed to download.
A3: Told me to copy/paste following in command prompt (run as admin): reg.exe add "HKLM\System\CurrentControlSet\Services\atapi\Controller0" /f /v EnumDevice1 /t REG_DWORD /d 0x00000001
Result after reboot: no change.

StevenGen

https://community.acer.com/en/discussion/698044/external-dvd-player-not-working-no-driver

If your DVD drive is not being recognized by Windows 11, there are a few things you can try to do to fix it. Here are some methods that might help:

• 1. Reset the DVD drive using the Registry editor: Click on the Windows button from the Taskbar. Type regedit into the Search box and click on the first result. Navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\atapi\. Now, create a new key named Controller0 by right-clicking on atapi. Select Controller0 and then right-click on an empty spot on the right side to create a new DWORD EnumDevice1. Set its Value Data to 1 and restart your computer. If Windows 11 still does not recognize your DVD, proceed to the next method.
• Remove IDE/ATAPI Drivers: Press Windows + R at the same time to open the Run window. Type devmgmt.msc into the box and press Enter. In Device Manager, expand IDE ATA/ATAPI controllers, then locate Standard Dual Channel PCI IDE Controller. Right-click the device and select Uninstall device. Follow the instructions to uninstall the driver. Restart your computer when prompted. After doing this, check if DVD/CD-ROM drives are still missing from the Device Manager.
• Remove the UpperFilters / LowerFilters registry key: Click on the Windows button at the bottom-left of your screen. Type regedit into the Search box and hit Enter. Navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E965-E325-11CE-BFC1-08002BE10318}. Right-click on UpperFilters and LowerFilters. Next, delete them by pressing Delete. If you do not find this variable in the given registry, skip to step 6. Close out of the Registry Editor and restart your computer. If your DVD/CD drive is not reading the disc, be sure to try this solution.

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