Why is AvastSvc.exe creating very high CPU and Memory usage?

[bob3160]

Try the change option instead of remove.
Remove the avast!Firewall from your installation. Reboot.
See if that makes a difference.

[REDACTED]

EUREKA !!!

Friends, I think I may have found the cause of AvastSvc.exe creating very high CPU and Memory usage.
 
I went to the following in the Avast User Interface :-  Settings -> Active Protection -> Mail Shield -> Mail Shield Settings -> SSL scanning.

□  Scan SSL connections

Here I unchecked the box.

Now, when either email client is executed, the CPU/RAM activity momentarily rises to 50% and returns to around the acceptable 8-10%, regardless of how long I keep the email client running.

Looks like this this may be the culprit after all. Will report back here tomorrow to confirm if this is the case. 

[REDACTED]

  Well folks, here we are after 2 days of no problems with the high CPU and Memory usage issue.
So the SSL scanning switch in the Mail Shield seems to be the answer to the issue.

Will be interested to read your thoughts on this.

Once again, thank you all for your guidance with this.


.

[!Donovan]

Glad to see the problem resolved.

Regards,
~!Donovan

[REDACTED]

Having same problem on two of my home computers running Avast Internet Security (program version 2014.9.0.2021). Tried uninstall, CCleaner to clean up registry followed by fresh re-install. Computer ran great for about 30 minutes or so, then AvastSvc.exe jumped up to the top of CPU usage again consuming 99% and bringing the machine to a standstill. Tried disabling SSL email scanning as suggested elsewhere in this post, but that did not work. The only thing that consistently seems to cure it is to disable the firewall, which is not something desirable. One additional point of note is that if I re-enable the firewall, the computer runs fine for about 30 minutes again, but then AvastSvc.exe suddenly jumps to the top CPU user position and stays there.

It's a real shame because Avast! used to be such a good antivirus with low CPU overhead and no pop-up ads. It's most frustrating when software I paid for now assaults me with pop-up ads and cripples my system!

[bob3160]

Having same problem on two of my home computers running Avast Internet Security (program version 2014.9.0.2021). Tried uninstall, CCleaner to clean up registry followed by fresh re-install. Computer ran great for about 30 minutes or so, then AvastSvc.exe jumped up to the top of CPU usage again consuming 99% and bringing the machine to a standstill. Tried disabling SSL email scanning as suggested elsewhere in this post, but that did not work. The only thing that consistently seems to cure it is to disable the firewall, which is not something desirable. One additional point of note is that if I re-enable the firewall, the computer runs fine for about 30 minutes again, but then AvastSvc.exe suddenly jumps to the top CPU user position and stays there.

It's a real shame because Avast! used to be such a good antivirus with low CPU overhead and no pop-up ads. It's most frustrating when software I paid for now assaults me with pop-up ads and cripples my system!

I can confirm your problem and have reported this to the Moderators to get a developers attention.

[REDACTED]

Well folks, here we are after 2 days of no problems with the high CPU and Memory usage issue.
So the SSL scanning switch in the Mail Shield seems to be the answer to the issue.

Will be interested to read your thoughts on this.

Once again, thank you all for your guidance with this.


.

UPDATE.

Hi to you all, it has now been over a month since my last post on this issue, and I have to say that all is still good.
So, In my particular XP SP3 and Thunderbird case, the SSL scanning switch in the Mail Shield seems to have been the answer to the issue.

Once again, many thanks to all who helped.



.

[REDACTED]

Having same problem on two of my home computers running Avast Internet Security (program version 2014.9.0.2021). Tried uninstall, CCleaner to clean up registry followed by fresh re-install. Computer ran great for about 30 minutes or so, then AvastSvc.exe jumped up to the top of CPU usage again consuming 99% and bringing the machine to a standstill. Tried disabling SSL email scanning as suggested elsewhere in this post, but that did not work. The only thing that consistently seems to cure it is to disable the firewall, which is not something desirable. One additional point of note is that if I re-enable the firewall, the computer runs fine for about 30 minutes again, but then AvastSvc.exe suddenly jumps to the top CPU user position and stays there.

It's a real shame because Avast! used to be such a good antivirus with low CPU overhead and no pop-up ads. It's most frustrating when software I paid for now assaults me with pop-up ads and cripples my system!

I can confirm your problem and have reported this to the Moderators to get a developers attention.

Ditto here. What I want to know is why I have to search about a problem that Avast knew over 6 months now.

It's a real pain that's going to have me looking for a better AV, one that doesn't pwn my computer.

[bob3160]

Having same problem on two of my home computers running Avast Internet Security (program version 2014.9.0.2021). Tried uninstall, CCleaner to clean up registry followed by fresh re-install. Computer ran great for about 30 minutes or so, then AvastSvc.exe jumped up to the top of CPU usage again consuming 99% and bringing the machine to a standstill. Tried disabling SSL email scanning as suggested elsewhere in this post, but that did not work. The only thing that consistently seems to cure it is to disable the firewall, which is not something desirable. One additional point of note is that if I re-enable the firewall, the computer runs fine for about 30 minutes again, but then AvastSvc.exe suddenly jumps to the top CPU user position and stays there.

It's a real shame because Avast! used to be such a good antivirus with low CPU overhead and no pop-up ads. It's most frustrating when software I paid for now assaults me with pop-up ads and cripples my system!

I can confirm your problem and have reported this to the Moderators to get a developers attention.

Ditto here. What I want to know is why I have to search about a problem that Avast knew over 6 months now.

It's a real pain that's going to have me looking for a better AV, one that doesn't pwn my computer.

Posting in old topics isn't the best thing to do since the old problem isn't a problem any more.
If you have a problem, post it in your own topic and give us details including info about your computer.

[REDACTED]

An old problem that isn't a problem?
THEN WHY THE HELL DOES AVASTSVC.EXE LOCK MY COMPUTER UP OFTEN FOR A MINUTE OR MORE?

What kind of Antivirus company sells an AV that acts like a damned VIRUS? BECAUSE I PAID FOR THIS.

Is there an antivirus out that doesn't do this shite out of the f_cking box? I'd like to know, I'll switch.

[bob3160]

An old problem that isn't a problem?
THEN WHY THE HELL DOES AVASTSVC.EXE LOCK MY COMPUTER UP OFTEN FOR A MINUTE OR MORE?

What kind of Antivirus company sells an AV that acts like a damned VIRUS? BECAUSE I PAID FOR THIS.

Is there an antivirus out that doesn't do this shite out of the f_cking box? I'd like to know, I'll switch.

Please watch your language. 
Thanks

[polonus]

Just to-day installed Avast Free Custom Install on an brand new 11 inch notebook
with 2 GB mem and 32 GB max mem and never saw it function swifter in my life.
Without a sound as there are no fan running. the notebook is an Acer E51 111M - C98P.
Very satisfied with Avast 's performance.
Over a decade with Avast as my protection - gratulations guys with a great performance.
I'd stay on with the show 

polonus (volunteer website security analyst and website error-hunter)