excessively long scan times on Win7 64-bit
I have about 75 machines deployed with SEP 12.1RU1MP1. We have a scheduled scan that runs on all machines at 01:00 each morning. The majority of the machines run the scan in 1-3 hours, depending on the particular machine. However, I have 10x Windows 7 64-bit machines, 6 of which almost always take 6-16 hours to complete. These 6 machines are unremarkable in terms of configuration, and are actually some of our newest machines. The other 4 are: 2x VMWare VM's & 2x physical workstations (1 of which is identical hardware to the 6 having issues). The 2 physical workstations not having issues are in our IT department and, interestingly, have 3-4 times as many files to scan as the average machine, and still finish well under 3 hours. All other machines (WinXP 32-bit, Win7 32-bit, Win2003 32-bit, & Win2008R2) also scan in 1-3 hours.
I'm thinking it may be something to do with the base OS install. With the exception of the 1 IT workstation, all of my 64-bit installs (Win 7 & Win2008R2) are clean install (i.e. not a preinstall from Dell). I couldn't tell you when it started, or how long it has been happening. I only noticed it when troubleshooting another machine that was having issues reporting its daily scan status to the server. I've tried uninstalling the SEP client and redeploying, but it hasn't helped.
Has anyone else had this issue? If so, what did you do to fix it?