情報標題：
Windows 10 May 2019 update is blocked on PCs with USB drives and SD cards
Windows 10 1903更新會因為電腦有裝USB儲存設備而被阻擋，包括記憶卡
情報來源：
Windows Central
情報網址：
https://www.windowscentral.com/windows-10-may-2019-update-
blocked-pcs-usb-drives-and-sd-cards?utm_source=wc_tw&utm_m
edium=tw_card&utm_content=64325&utm_campaign=social
https://is.gd/Ujr81T
情報完整內文：
You can get your hands on Windows 10's big May update before everyone else,
but you should remove your external storage devices before you proceed.
Windows 10 May update has a weird bug where it was found to be reassigning
drive letters for external storage devices. For instance, if you have a USB
hard drive that shows up as the D: drive, the update could shuffle it to the
E: drive. As a result, Microsoft is blocking the update from installing on
PCs that have USB storage or SD cards attached to them:
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.
If you have a USB drive plugged into your PC and try to install the May
update, you'll get a message that says, "This PC can't be upgraded to
Windows 10." Thankfully, there's a pretty straightforward fix: just remove
whatever external storage device that's attached to your PC, and you'll be
able to install the update just fine. From Microsoft:
A USB device or SD card that's inserted into the computer can cause this
issue to occur. To work around this issue, remove the external media and
restart the May 2019 Update installation.
As noted by Ars Technica, this isn't the first time a Windows update messed
with drive letter assignment. Build 1803 would randomly assign letters to
recovery partitions, and then deliver incessant notifications about disc
space running out. It's a much more manageable issue, but it's still weird
that Microsoft wasn't able to catch this during early beta tests.
只挑幾個重點不負責任翻譯：
1.Win10 1903更新程式在偵測到電腦上有外接儲存設備時，會出現「本電腦無法安裝」
的錯誤訊息。
2.這個錯誤的原因是安裝程式在啟動過程中會亂動你的外接磁碟的代號，以至於被系統
當作是類似惡意程式的行為而將其擋下。
3.解決方式很簡單，移除所有外接磁碟，重開機就好。
4.這個問題在剛好一年前的1803也發生過。
心得：
如果這個問題在1803也發生過
那我是不是也需要擔心今年底的1910也會出現用戶資料夾又被清空的災情....