diff --git a/vm/os-windows-nt.cpp b/vm/os-windows-nt.cpp
index b781ced02f..6aabe92d71 100755
--- a/vm/os-windows-nt.cpp
+++ b/vm/os-windows-nt.cpp
@@ -43,9 +43,8 @@ u64 nano_count()
 {
 	LARGE_INTEGER count;
 	LARGE_INTEGER frequency;
-	static u32 hi_correction = 0;
-	static u32 hi = 0xffffffff;
-	static u32 lo = 0xffffffff;
+	static u32 hi = 0;
+	static u32 lo = 0;
 	BOOL ret;
 	ret = QueryPerformanceCounter(&count);
 	if(ret == 0)
@@ -54,14 +53,13 @@ u64 nano_count()
 	if(ret == 0)
 		fatal_error("QueryPerformanceFrequency", 0);
 
-	if((u32)count.LowPart < lo && (u32)count.HighPart == hi)
-		hi_correction++;
+	printf("hi = %u, lo = %u\n", hi, lo);
 
-	hi = count.HighPart;
+	if(count.LowPart < lo)
+		hi += 1;
 	lo = count.LowPart;
-	count.HighPart += hi_correction;
 
-	return count.QuadPart*(1000000000/frequency.QuadPart);
+	return (((u64)hi << 32) | (u64)lo)*(1000000000/frequency.QuadPart);
 }
 
 void sleep_nanos(u64 nsec)