link.xxxxx....tlog files OK to delete?

As far as I remember, *.tlog files are generated for incremental build by the file tracker feature of MSBuild.

I would suggest to disable the generation of these tracking log files (rather then deleting), by manually adding following MSBuild property to the .vcxproj file.
 

<TrackFileAccess>false</TrackFileAccess>

But keep in mind that by doing that, you'll have to sacrifice incremental linking.