diff --git a/Documentation/user-manual.txt b/Documentation/user-manual.txt
index 27b09bf8b..cf8ec3683 100644
--- a/Documentation/user-manual.txt
+++ b/Documentation/user-manual.txt
@@ -611,6 +611,15 @@ shows details about the current status of the Bluetooth agent. To
 select another dive computer for download using the "Remote Bluetooth selection dialogue"
 press the three-dots button from the _"Choose Bluetooth download mode"_ option.
 
+[icon="images/icons/important.png"]
+[IMPORTANT]
+The Subsurface support for BLTE dive computers on Windows is *EXPERIMENTAL* and only
+supported on Windows 10.
+Please make sure that you have the latest version of Windows 10.
+link:https://en.wikipedia.org/wiki/Windows_10_version_history#Version_1803_(April_2018_Update)[Version 1803] is a minimum
+requirement. Also make sure that you have installed the latest drivers for your
+motherboard and/or BTLE dongle.
+
 [icon="images/icons/important.png"]
 [IMPORTANT]