diff --git a/qga/channel-win32.c b/qga/channel-win32.c
index 0d5e5f511f0271d05774e2539a18e0332f9fa266..04fa5e4d1dfcea99e9fc7b62576bc2ef917582f0 100644
--- a/qga/channel-win32.c
+++ b/qga/channel-win32.c
@@ -306,7 +306,7 @@ static gboolean ga_channel_open(GAChannel *c, GAChannelMethod method,
                            OPEN_EXISTING,
                            FILE_FLAG_NO_BUFFERING | FILE_FLAG_OVERLAPPED, NULL);
     if (c->handle == INVALID_HANDLE_VALUE) {
-        g_critical("error opening path");
+        g_critical("error opening path %s", newpath);
         return false;
     }
 
diff --git a/qga/commands-win32.c b/qga/commands-win32.c
index 3ef0549c0f5c61f8899cf809f962678c59657528..d0aaec70f3c8eff63cec7037629a1a9743e24525 100644
--- a/qga/commands-win32.c
+++ b/qga/commands-win32.c
@@ -721,6 +721,7 @@ GList *ga_command_blacklist_init(GList *blacklist)
     }
 
     if (!vss_init(true)) {
+        g_debug("vss_init failed, vss commands are going to be disabled");
         const char *list[] = {
             "guest-get-fsinfo", "guest-fsfreeze-status",
             "guest-fsfreeze-freeze", "guest-fsfreeze-thaw", NULL};