Summary

Several abnormal messages appear on the Windows 10 Anniversary Update Build 1607 Redstone 1 (RS1) platform even when ping results are successful.

Ping command results in the Command Prompt (CMD.exe) window are accompanied by the following message:

[0x7FFE573C70E3] ANOMALY: use of REX.w is meaningless (default operand size is 64)

This occurs even after applying OSCE 11.0 SP1 Critical Patch (CP) 6125 to support Windows 10 RS1. If the OfficeScan agent/client is unloaded, the issue does not occur.