You can get your hands-on Windows 10 big May update before every other person, yet you should remove your external storage devices before you proceed.
Microsoft is blocking the update on PCs that have a USB hard disk like a thumb drive connected, or machines with an SD Card in the SD Card reader.
“Inappropriate drive reassignment can occur on Windows 10-based computers that have an external USB device or SD memory card attached during the installation of the May 2019 update. For this reason, these computers are currently blocked from receiving the May 2019 Update. This generates the error message that is mentioned in the “Symptoms” section if the upgrade is tried again on an affected computer.”
The accompanying blunder message will be appeared for Windows 10 clients where the May 2019 Update has been blocked in light of tricky external USB storage devices or SD cards.
The main speedy and straightforward workaround for this issue. Microsoft states that clients will initially need to remove any external media, for example, USB drives and SD cards and afterward reboot the PC. When the PC is rebooted, they would then be able to endeavour the May 2019 Update once more.
Microsoft has likewise expressed that this issue will be fixed in a future Windows 10 servicing update.