diff --git a/doc/build-windows.md b/doc/build-windows.md
--- a/doc/build-windows.md
+++ b/doc/build-windows.md
@@ -114,7 +114,7 @@
     make HOST=x86_64-w64-mingw32
     cd ..
     ./autogen.sh # not required when building from tarball
-    CONFIG_SITE=$PWD/depends/x86_64-w64-mingw32/share/config.site ./configure --prefix=/
+    CONFIG_SITE=$PWD/depends/x86_64-w64-mingw32/share/config.site ./configure --prefix=/ --prefix=/ --with-seeder=false # seeder not supported in Windows yet
     make
 
 ## Building for 32-bit Windows
@@ -142,7 +142,7 @@
     make HOST=i686-w64-mingw32
     cd ..
     ./autogen.sh # not required when building from tarball
-    CONFIG_SITE=$PWD/depends/i686-w64-mingw32/share/config.site ./configure --prefix=/
+    CONFIG_SITE=$PWD/depends/i686-w64-mingw32/share/config.site ./configure --prefix=/ --prefix=/ --with-seeder=false # seeder not supported in Windows yet
     make
 
 ## Depends system
diff --git a/src/qt/test/test_main.cpp b/src/qt/test/test_main.cpp
--- a/src/qt/test/test_main.cpp
+++ b/src/qt/test/test_main.cpp
@@ -61,7 +61,12 @@
     // Prefer the "minimal" platform for the test instead of the normal default
     // platform ("xcb", "windows", or "cocoa") so tests can't unintentially
     // interfere with any background GUIs and don't require extra resources.
+
+#if defined(WIN32)
+    _putenv_s("QT_QPA_PLATFORM", "minimal");
+#else
     setenv("QT_QPA_PLATFORM", "minimal", 0);
+#endif
 
     // Don't remove this, it's needed to access
     // QApplication:: and QCoreApplication:: in the tests