OpenCore Version: 0.6.2 macOS Version: Catalina 10.15.6 (19G2021) Losing connection to wifi randomly, Ubuntu 18.04 LTS on Dell XPS 15 9530. This is an OpenCore EFI that allows you to install and boot macOS X Catalina on your Dell (2020).
I could call Microsoft but I'm sure I could get a new screen in and tested faster and with less frustration then dealing with them. I'm not fully sure it is the screen though and it will be hard explaining to them how that could happen after an update. This includes busted shadow copies by the way, which can pile up if you're using any sort of real backup." You can go through all those hives and cleanly uninstall every ghosted icon. Windows will now list each and ever stupid driver installed but not actually being used at the time. Then launch Device Manager, go to the view menu, and enable show hidden devices. Create a new system environment variable named DEVMGR_SHOW_NONPRESENT_DEVICES and set it to a value of 1. "Open the System applet in the control panel, click advanced system settings to get the system properties window, go to the Advanced Tab, click the Environment Variables button at the bottom. I even tried this from a different thread by another tech here. I tried it in linux mint 17 and windows 10 pe from USB and didn't work. The only thing I haven't tried yet is ordering a new touchscreen to test but figured I would ask if anyone else would know what the problem is before doing that. There are lots of articles like this one that says that the touchscreen drivers just disappeared after the update similar to my problem where they can't uninstall the touchscreen driver because it is not there. I downgraded the bios to an earlier version and reinstalled build 1709 and still the touchscreen is not working.
I even put in a different hard drive reloaded windows 10 using both 17 builds. I took the laptop apart and made sure everything was connected securely. I looked under Human Interface devices, Usb controllers, Mouse and other pointing devices and also set it to show hidden devices and still nothing. I looked under I ran the dell diagnostic test and support assist app and both don't have recognize the touchscreen either. I looked in the device manager and the touchscreen isn't even showing up. I have a Dell Inspiron 7348 where they said the touchscreen stopped working after an update.
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