Greetings,as I have several laptops with Windows XP OEM & functional WiFi & if I have a laptop with its original OS,I am preserving it & sometimes their HDDs r not big enough for add Windows 7 to multiboot,I tried few last antiviruses available for Windows XP.
I installed AVG Antivirus for Windows XP to last 2 old laptops,I got:IBM ThinkPads T42 & X40 & after about a half year of normal operation,after a regular update about a month ago,this antivirus changed it behavior & started to exploit Csrss.exe the way,CPU utilization is always 100%!!!In the Task Manager AVGservice & csrss.exe r always in upper 2 rows,if sorted by CPU usage & this happened in both of my machines,where I have Windows XP(various builds) & AVG Antivirus for Windows XP,after the same update of the AVG.
I wrote a bug report to AVG by email about 2 weeks ago & AVG is determinably ignoring my request to remove this bug & is ignoring my correspondence,thus I am suspicious,this may be not a bug,but a sabotage intented for enforce EoL,but very strange for enforcing EoL just for the antivirus,because it still receives updates.Normally,if a vendor decides for EoL of an antivirus,it is usually done by discontinuing updating the virus definitions,thus my suspicion is,AVG helps Microsoft to kill Legacy machines,because this resulting constant ovegloading of the CPU may damage the HW after a long time of constant heat stress,this is only a personal suspicion,but facts r,AVG modified its antivirus for Windows XP to enforce constant 100% CPU load & the company is unwilling to fix it & when some1 is unwilling to fix a bug,it is logically a base for a suspicion,it is not a bug,but it was done on purpose,of course as the company keeps radio silence,we may just guess about the purpose,as I guessed above(I hope,when I mark it as a personal guess,speculation & opinion or impress,this behavior did on me,I did not make it a conspiracy theory,which I have read,r forbidden here,but I hope,if I do not insist,it is sure the truth,which I do not,as there is not enough proofs,it is not a conspiracy theory,if I define it only as an opinion or impress & 1 of many possibilities,what is the reason for this change in the program).There is also another possibility,that AVG was hacked & antivirus was turned into virus,or the update link was hacked & redirected & I am getting fake virus definition updates,or even I could be redirected by a malware,when I downloaded the antivirus installer,so it whole may be a fake program only pretending to be an antivirus & in fact it is some kind of backdoor or so.Fact is,when U r downloading the 1st antivirus installer into any system,U r accessing internet without any protection,thus U may never be sure,U downloaded a real antivirus & not a malware pretending to be an antimalware,especially, when regular vendors have download URLs separated & different from their main websites,now it is almost never a sub-URL of the vendor's main URL,thus fake redirected URLs can no more be safely distinguished from the real download URLs.
The only resulting ensured true is,the AVG Antivirus for Windows XP is overloading the CPU & in the way of last modification is unusable & U should not install it.
In case,there r no other antiviruses left for Windows XP,the only solution is to stop using Windows XP for accessing the internet(which may be the goal of this last mod of AVG),thus if I wish to access internet for example from IBM ThinkPad X40,I will be forced to split the partition to add Windows 7 UltraLite for internet access.
I will notify,if there will be something new about this case.
For now AVG for Windows XP is a strange thing trying to fry Your old PC,thus I feel a duty to warn U all,as I know,how most of Retro-People loves Windows XP(me 2) thus I wish to make others avoid this problems.