Safe to delete these temp files?

In the folder C:\WINDOWS\Temp I have two files: coFA.tmp and coFB.tmp

They are both 768 KB.

 

In the Properties window under Version tab it says:

 

Product name - Norton Confidential

Original File name - coFFPlgn.dll

 

The only difference between the two is the File Version: 2010.6.0.5 vs 2010.6.1.2

 

Is it safe to delete these files?

 

Thank you, Alex.