What does 'possible heap corruption detected' mean, when listed in the Event Viewer?

Emma

I would not disagree with anything Palcouk has said.

Whilst my experience has been that recognition of installed anti-virus software by the Windows Security Center can be hit and miss, the Security Center commonly misreports no secuity software is installed when it is, you do need to create a situation where you can identify and resolve other recurring errors. What Palcouk suggests will help, even if it is only for a period until you have eliminated or substantially reduced the number recurring errors.

Don't forget my earlier messages about other specific errors. A fresh look at Event Viewer logs will no doubt yield further problems to be looked at. I stopped looking at earlier logs because I felt you needed to resolve some of the problems already brought to your attention first before raising new issues.

Side By Side errors are often caused by C++ and possibly ,Net Framework

I would uninstall both Panda and Nero, (Assuming you have the Keys and installation media they can allways be reinstalled at a later date) and delete the Event Viewr logs

Then install SE from MS http://www.microsoft.com/security_essentials/

Then check if the event errors have reduced or gone away.

Since both Panda & Nero are scources of some err's you are not going to get anywhere with diagnosys untill you remove them from the equation

I did the memory test and the computer reported that the memory was ok.

There are no BSODS and  my computer starts up ok as well.

I have uninstalled and re-installed Panda and I am still getting the error:  The Windows Security Center Service was unable to establish event queries with WMI to monitor third party anti-virus, anti-spyware and firewall.

Tha action centre also reports that Panda IS 2012 is switched off, when in fact it isn't.  All the errors with regards to security start to occur after I installed IS 2012.

Emma

Not many contributors here will have the capacity to investigate heap corruption. You are into debugging. You wiil find a number of contributors here who will dedug dump files arising from BSOD errors ( perhaps 20 ) but I have not read many reports regarding an attempt to debug heap corruption. I have read the occasional thread in the Social Technet. Your thread initially attracted my interest because I thought Zig Zag was about to attempt it. 

SidebySide reports are warnings and as such do not have the impact an Error has. However, they are indicating that something is not quite as it should be. They are also difficult to interpret. The combination of difficult to interpret and that they do not, that I know of, lead to system failure could well be why your "guru" told you what he did.

Opinions on security software are subjective and often based on personal preferences. My opinion on Panda is neutral. I think it is neither good nor bad. Your comment on not uninstalling is unwise. You should uninstall and reinstall. You need to make some effort to eliminate the many errors it is generating. That is the best way to try to do so.

You should not focus on any particular error to the exclusion of others.Some errors are difficult to resolve, especially when the situation is confused by the existence of many errors. You can either eliminate  the easier errors or do a clean install of the operating system. Before doing a clean install it is best to be sure,as far as reasonably possible, that you do not have a hardware problem. A clean install is a lot of work and will not eliminate a hardware problem.

Oh by the way no amount of memory testing can eliminate the possibility that defective RAM is installed. What testing can do is reveal it's existence. It does not prove the reverse.