diff --git a/artiq-fast/windows/qemu.nix b/artiq-fast/windows/qemu.nix
index 26191f0..f6cbc4f 100644
--- a/artiq-fast/windows/qemu.nix
+++ b/artiq-fast/windows/qemu.nix
@@ -25,7 +25,7 @@ let
             ) forwardedPorts
           );
       args = [
-        "-enable-kvm"
+        #"-enable-kvm"
         "-m"
         qemuMem
         "-bios"
diff --git a/artiq-fast/windows/win.nix b/artiq-fast/windows/win.nix
index 61faa2e..8801048 100644
--- a/artiq-fast/windows/win.nix
+++ b/artiq-fast/windows/win.nix
@@ -77,7 +77,7 @@ let
     '';
 
   mkQemuFlags = extraFlags: [
-    "-enable-kvm"
+    #"-enable-kvm"
     "-cpu"
     "host"
     "-smp"