Windows Defender

[YoKenny]

I have been unable to update Windows Defender to the latest definitions
since June 20th on my 512MB RAM XP Home nor 768MB RAM Pro systems.

System Event log:
Installation Failure: Windows failed to install the following update with
error 0x80070643: Definition Update for Windows Defender - KB915597
(Definition 1.35.716.0)

Windows Defender has encountered an error trying to update signatures.
New Signature Version: 1.35.716.0
Previous Signature Version: 1.0.0.0
Update Source: User
Signature Type: AntiSpyware
Update Type: Full
User: IBMKS1\Ken Howey
Current Engine Version: 1.1.3604.0
Previous Engine Version: 1.1.2204.0
Error code: 0x80508007
Error description: Your computer is low on memory. Close some programs and
try again, or search Help and Support for information about preventing low
memory problems

I have tried to un-install then reboot then download the latest msi file and
re-install disabling WinPatrol and Avast anti virus with the same failure.

 

[PA Bear [MS MVP]]

WinXP SP2 or WinXP SP3?

Error description: Your computer is low on memory. Close some programs and
try again...

Could your computer be low on memory? Try running Disk Cleanup & then
reboot.

Can you update Defender manually via
http://www.microsoft.com/security/portal/ ??

 

[PPF]

I have a same problem.
My system with Windows XP SP3.
I tried other option like manual download but nothing works.
I think this update has some program error by MS.

 

[PA Bear [MS MVP]]

Judging from the number of posts in Windows Update newsgroup in the past 30
minutes or so, you may be right.

 

[Marcus]

I have been unable to update Windows Defender to the latest definitions
since June 20th on my 512MB RAM XP Home nor 768MB RAM Pro systems.

System Event log:
Installation Failure: Windows failed to install the following update with
error 0x80070643: Definition Update for Windows Defender - KB915597
(Definition 1.35.716.0)

Windows Defender has encountered an error trying to update signatures.
New Signature Version: 1.35.716.0
Previous Signature Version: 1.0.0.0
Update Source: User
Signature Type: AntiSpyware
Update Type: Full
User: IBMKS1\Ken Howey
Current Engine Version: 1.1.3604.0
Previous Engine Version: 1.1.2204.0
Error code: 0x80508007
Error description: Your computer is low on memory. Close some programs and
try again, or search Help and Support for information about preventing low
memory problems

I have tried to un-install then reboot then download the latest msi file and
re-install disabling WinPatrol and Avast anti virus with the same failure.

--
Regards, Yokenny
Change is inevitable except from a vending machine.


I am having exactly the same issue. I have tried the windows defender GUI with the same results. Microsoft update...same results. Manual Installer...no joy. My System has 512Mb of RAM and I have even tried killing as many processes as possible with no good results. I have also tried Safe mode. Is this a problem with this particular update file? Or is it a problem on my end? HELP!!!!!!

 

[PA Bear [MS MVP]]

I have reproduced this problem (error 0x80070643). Users may encounter this
problem when updating Defender via Automatic Update, Windows Update, or from
within Defender (Check for updates function).

NB: Defender will NOT be happy and its "Alert!" icon will continue to appear
in Notification Area until an update is successfully installed. This does
NOT mean that Defender is not working/protecting your machine.

I have alerted MS and the Defender team to this apparent bug via private
channels.

 

[JohnBurns]

Thanks for alerting MS - I hope they realize MANY people are trying lots of
things which are futile in trying to resolve this. I wish they would let us
know what the problem really is - and how to fix it.

 

[YoKenny]

Thanks for alerting MS - I hope they realize MANY people are trying
lots of things which are futile in trying to resolve this. I wish
they would let us know what the problem really is - and how to fix it.

I'm sure they will and provide the fix as soon as possible.

Thanks very much. I'm glad I'm not alone in this situation.

 

[PA Bear [MS MVP]]

As John pointed out a few minutes ago, you can manually update Defender on
32-bit machines:

1. Go to http://www.microsoft.com/security/portal/ADL.aspx

2. Click on the link on the left side of the page to download/install the
new update. Do not use the link in the right-hand menu under "Latest
Definition Updates".

The linked download appears to be a re-release of definitions v1.35.563.0
which were originally released on 19 Jun-08. Installing it will make
Defender "happy" again. <wink>

 

[YoKenny]

As John pointed out a few minutes ago, you can manually update
Defender on 32-bit machines:

1. Go to http://www.microsoft.com/security/portal/ADL.aspx

2. Click on the link on the left side of the page to download/install
the new update. Do not use the link in the right-hand menu under
"Latest Definition Updates".

The linked download appears to be a re-release of definitions
v1.35.563.0 which were originally released on 19 Jun-08. Installing
it will make Defender "happy" again. <wink>

That worked however Defender indicates that it is v1.35.745 created on
6/24/2008 at 8:24 PM.

 

[PA Bear [MS MVP]]

Yep, by the time you sought the update you would've been offered v1.35.740.0
or greater.