I agree with mclemson, either the physical disk is bad or you have some underlying disk driver issue. if this is a VM, I have seen similar strangeness before due to overloaded VMware hosts.
The other possibility is that virusscanning is interfering with the AuditPlus scan. Try disabling AV while the scan runs as a test, or exclude the AeXAuditPls.exe from being scanned by antivirus.
The other possibility is that this is an Invneotry 6.1 SP2 defect which was not corrected in SP3 (per your version information, you're on SP3). See
AKB40713 for a record of this issue.
One last suggestion would be to review the aeXAuditPls.nsi file which was created to see where in the directory structure the error is occurring. There may be a case to add some additional exclusions (i.e. C:\System Volume Information, which should be exluded already but may not be).