Microsoft is projected to begin the rollout of the new Windows 10 May 2019 Update, or Windows 10 version 1903, later this month, and also the company offers to embrace a far more cautious method of ensure a smoother release to devices worldwide.

One method to guarantee a flawless upgrade is to announce each block that could prevent devices from installing the May update. And according to Microsoft, there are three of these at this time.

To begin with, Microsoft states that computers with an external USB device or SD storage device plugged in would be blocked from obtaining the new OS version. The simplest way to cope with this is to simply remove these units, with the update then supposed to proceed normally. A fix has already been within the works best for Windows 10 devices, while insiders can give it a try starting with build 18877.

Then, there's that old problem with anti-cheat software that could cause a BSOD. Microsoft says that only "older versions of anti-cheat software" could experience such issues, therefore devices running it wouldn't be permitted to download the May update. The organization, however, doesn't provide any specifics in regards to what anti-cheat apps are causing these errors.

"This block is specific to older versions of anti-cheat software. We're dealing with partners on getting their software updated with a fix, and many games have released patches to avoid PCs from experiencing this problem. To minimize the chance of hitting this block, please make sure you are running the latest form of your games before attempting to update the operating-system," it says.

"Known folders bug"

And last but not least, there's a known glitch affecting devices with redirected known folders. Microsoft states that empty folders are created throughout the update the process, but no data is lost.

"Your Known Folders are redirected if you chose to back up your content to OneDrive using the OneDrive wizard, or you made a decision to keep the content supported throughout the Windows Out-of-box-Experience (OOBE). You may have also redirected your Known Folders manually with the Properties Dialog in File Explorer. This issue does not cause any user files to be deleted and a fix is within progress," it says.

No ETA is available around the fixes announced by Microsoft here, however with the May update currently in the Release Preview ring, more information on their progress should be shared soon.