Microsoft has not yet had time to release a global update of Windows 10 May 2019 Update, in the meantime, users from the test program have already found an error in the May update.
They ran into a problem when the patch neverwhat did not want to be installed. Users received a notification: "This PC cannot be upgraded to Windows 10." The reasons for this were connected to the PC at the time of the update SD-memory cards or external USB-devices. As explained in Microsoft, this is caused by incorrect reassignment of disks.
In other words, if the USB drive originallyhad the designation “G drive”, then upon completion of the update, the letter may change, say, to H. For an ordinary user, this confusion is insignificant, while for a corporate system it can become a serious problem.
Windows 10 May 2019 Update will be released very soon, inMay Prior to this error is unlikely to have time to correct. They promised to make it to the next update. For the time being, users are advised to first disconnect all memory cards, flash drives and other devices and only after that install the update.