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.PST keeps on going corrupt because of Virus

Posted on 2016-09-10
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Last Modified: 2016-10-11
A .PST folder in Outlook 2007 keeps on going corrupt because of viruses.

The scenario happens as follows:

Outlook 2007 would be operational. Kaspersky AV will detect a virus in an incoming email (Kaspersky message box pops up), then Outlook shuts down. When you restart Outlook, it says something along the lines of "SCANPST needs to run" and at this stage Outlook will not open.  When you run SCANPST it does repair the .PST file but then the next virus knocks Outlook 2007 out again.

BTW, the folder size is only about 3GB.

What do you think best course of action is here?
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Question by:furuno
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12 Comments
 
LVL 94

Expert Comment

by:John Hurst
ID: 41792912
First make a secure copy of your PST file.
Scan again and make another secure copy of your PST file.

Now do a Full (complete) scan with Kaspersky and then scan with Malwarebytes (Malwarebytes.org)

Shut down, start up, and test.

If you still have PST corruption after this, back up the computer, format and reinstall Windows.
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LVL 2

Author Comment

by:furuno
ID: 41792919
John, thanks for your reply but I should have stressed the damage is seems to be coming from the "new" viruses. I do
not think this is happening to to collateral damage from the a previous virus attack. Rather, the current viruses seem to be corrupting this .PST.
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LVL 94

Expert Comment

by:John Hurst
ID: 41792921
What new viruses are coming in?  Kaspersky is decent. I use Symantec Corporate. Neither are perfect but will trap most viruses.

Viruses do not "come in". They are invited in by our actions. You need to look at the websites you are visiting and also be sure to delete unknown emails.
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LVL 2

Author Comment

by:furuno
ID: 41792929
It's not my computer! The user in question exercises extreme care and certain does not invite viruses in!

What I mean by "come in" is when you press on "send and receive" emails will arrive into your inbox EVEN if you
do not open them. Thus, they still get stored in the PST folder (even if not executed). This appears to be the nub of the problem.
And as I've said Kaspersky gets triggered everytime.

so its either Kaspersky's attempted "disinfection" of the virus which is causing the .PST corruption or the virus itself. Either way,
I need to find a robust solution...
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LVL 94

Assisted Solution

by:John Hurst
John Hurst earned 125 total points (awarded by participants)
ID: 41792934
The user needs a much better spam filter . That is the way to protect email. The Outlook junk mail is very primitive. Get a spam filter or change email hosts. I do not get any spam in my Outlook.
0
 
LVL 80

Assisted Solution

by:David Johnson, CD, MVP
David Johnson, CD, MVP earned 125 total points (awarded by participants)
ID: 41792972
This seems to be a never-ending problem until the offending message i deleted within outlook  You download the message, Kaspersky deletes it mangling the outlook.pst. One suggestion is to disable the anti-virus from scanning the email.  Finding and then deleting the offending attachment (shift-delete). Close outlook, compact the pst then re-enable Kaspersky Email scanning and then continuing on
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LVL 2

Author Comment

by:furuno
ID: 41792997
>>One suggestion is to disable the anti-virus from scanning the email.  Finding and then deleting the offending attachment >>(shift-delete). Close outlook, compact the pst then re-enable Kaspersky Email scanning and then continuing on

Thanks guys for the suggestions so far.

I need a more long-term-ish solution to this one.

This problem has happened now 3 times in 1 week. Cannot ask user to jump thru hoops everytime it happens!

And it does seem that Kaspersky (which is normally great) is "mangling" the PST in it's earnest attempt to keep the system safe.
0
 
LVL 94

Expert Comment

by:John Hurst
ID: 41793033
As I noted above, the user needs a spam filter even if it means changing suppliers. That is a long term solution that will work.
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LVL 14

Accepted Solution

by:
Alexei Kuznetsov earned 125 total points (awarded by participants)
ID: 41793523
Just turn off the Kaspersky's email scanning feature. This is just a marketing: the user still can't access files that are infected. But you'll not get all these stupid side effects.
0
 
LVL 10

Assisted Solution

by:Clark Kent
Clark Kent earned 125 total points (awarded by participants)
ID: 41793749
Hello Dear,

After trying above solutions as suggested by Experts if the problem still occurs, then please try to repair your Outlook PST file with any third party tool. Actually, SCANPST does not repair highly corrupted PST file. On the behalf my experience, I would like to suggest you PST Repair Tool to repair highly corrupted Outlook data file.

Download from here: http://www.msoutlookware.com/dl/outlook-recovery.exe

Note: Run the demo version before purchasing it.

Thanks & Regards
Clark Kent
1
 
LVL 2

Author Comment

by:furuno
ID: 41810388
ok guys thanks for all you input on this one.

The solution I finally went with was installing Outlook 2013. With it's slightly better spam filter / integration with Kaspersky - the .PST is no longer getting mangled.

I did not want to turn off Kaspersky email scanning.

Thanks again John, Alexi and Clark - your input was much appreciated.
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