Not even the latest semi-annual update of Windows 10, that is the May Update 2019 (formerly April Update), is without problems. In fact, numerous reports have already arrived from users relating to problems arising from the Windows 10 update. The most frequent have to do with Wi-Fi and Bluetooth connections, but there are also reports relating to USB and SD memories.
Let's clarify immediately: nothing comparable to the real disaster that occurred following the previous October Update of 2018, which even caused the loss of personal data from the hard drives of some users. However, the problems are there and Microsoft is working to fix them but for some fixes users will have to wait. Also because most of the malfunctions depend on third-party device drivers and, consequently, the solution also passes from companies outside Microsoft.
Windows 10 May Update: problems with Wi-Fi and Bluetooth
Most reports of Wi-Fi problems following the Windows 10 update depend on a old driver for Qualcomm network controllers. The company is working on an updated driver, which will not cause problems on Win 10 1903. Microsoft, on the other hand, has suspended the update for PCs equipped with Qualcomm network chips with the old drivers installed. Same problem for Realtek branded Bluetooth drivers too and, again, Qualcomm: after installing the Windows update, PCs have difficulty finding Bluetooth peripherals and pairing them.
Windows 10 May Update: Other minor issues
If your PC has a USB connected external drive or SD memory card inserted into the slot, then chances are you won't be able to install the Win 10 May Update. Usually the installation reports the message “This PC cannot be upgraded to Windows 10“. Microsoft recommends that you disconnect USB disks and remove SD cards before starting the update. In the meantime, he is working on a fix for this problem. Driver problems also for PCs with RAID controllers from AMD which, fortunately, has already published a software update that completely resolves the malfunction. Finally, minor problems for Dolby Atmos audio and for some features of the graphics card such as color profiles and screen brightness.
Windows 10, Wi-Fi and Bluetooth issues with the May update