Q4015549 has been replaced by MS17-05-MR7 Q4019264. The Q4015549 isn't even available for download anymore.
Q4015550 has been replaced MS17-05-MR81 Q4019215.
Our scans will show you the latest patch in the supersedence chain, so no need to install patches that have been replaced by newer patches.
Do you have the later patches installed?
Yes. I do. Thanks for the information.... As always great..support!