NOD32 on demand scanner issue

Ordinarily, a complete on-demand scan of my system will scan
approximately 335000 items and take roughly 50 minutes to complete.
After initiating a case with ESET support over a possible infection,
I was requested to run a scan with an application called "combofix".
which I did as per instructions.
After running this "combofix" scan, I find that my on-demand scanner
is functioning differently.
With NO changes to my NOD32 AV configuration and NO changes to
my system configuration (except for having to install the Windows
recovery console to perform the combifix scan) and NO programs
or files deleted, uninstalled or modified, a full on-demand scan now
will only scan approximately 110000 items and take around 26 minutes.
Can someone tell me exactly what would cause such a change in the
way my NOD32 on demand scanner would function (I reiterate that NO
changes were made to my system or any program/application on it
except the Windows recovery console) and how to restore this
program function to the state that I think it should function as?




Windows XP sp3
NOD32 v. 4.2.40

 

did combofix find any malware and fixed it?

 

Combofix did not cleanse, delete or take any actions against any files
according to what I saw in the log.

 

run this under command prompt
dir /s /b C:\ |find /c "\"

it will tell you how many files are on the C: drive (110,000 sounds roughly right). However, AV will count and files within archives too

 

That was the issue, the NOD32 on-demand scanner is no longer scanning
files within archives. There is a message "decompression could not complete
possible reasons: insufficient free memory or disk space, or a problem with temp folders" (this message will only appear when scanning a single folder,
and not when I do a full system scan)

I have 3327 mb physical memory,2627 mb free
5216 mb swap space,4724 mb free
8543 mb virtual memory,7352 mb free, and 351 gb
of free disk space, so I'm assuming there is some issue
with temp folders, but I have no idea what. I have never
seen, let alone used any options to modify temp folder
properties.

 

see this maybe
http://kb.eset.com/esetkb/index?page=content&id=SOLN554
there will be similar tab in XP Pro (not Home)

 

Thanks for your responses
I saw that page earlier, the closest thing I have to that solution is to
uncheck "read only" in folder properties (I don't recall ever checking
"read only" to begin with) and hopefully that will solve the problem.

 

Combofix tutorial here What to do if you are infected