1. Mass Storage Controller Driver Windows 10 Dell Latitude E5420
2. Dell Latitude E5420 Bluetooth Driver

Hi,

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Dell Latitude E5520 laptop

• Download and Update Dell Latitude E5520 Drivers for your Windows XP, Vista, 7, 8 and 10 32 bit and 64 bit. Here you can download Dell Latitude E5520 Drivers free and easy, just update your drivers now.
• With FREE version: Click the Update button next to a flagged mass storage controller driver to automatically download and install the correct driver. With Pro version: Click Update All to automatically download and install the correct version of all the drivers that are missing or out of date on your system.

Windows 10, 64 bit, Feature update to Windows 10, version 1709

After upgrading from Windows 7 to Windows 10, and after every major Windows 10 update, I have noticed that my internal microphone 'disappears' - it is not disabled, it is simply not there.

The solution (which I have had to do twice now), is to install the IDT Audio driver. This link to the Dell community forum has more detail, as this is something that seems to affect quite a few Dell laptops:

https://www.dell.com/community/General/E5420-Windows-10-does-not-detect-microphone-is-there-a-solution/m-p/4684233

However, after the latest major update (1709), the microphone again disappeared, but this time, after installing the IDT driver, the laptop will not boot.

Mass Storage Controller Driver Windows 10 Dell Latitude E5420

I need to boot into safe mode and uninstall the audio driver, then the laptop can boot again normally (though, of course, the internal microphone does not work).

Dell Latitude E5420 Bluetooth Driver

Any suggestions for where to investigate further?
[Moved from: Windows / Windows 10 / Windows update, recovery, & backup]