Avast WEBforum
Consumer Products => Avast Free Antivirus / Premium Security (legacy Pro Antivirus, Internet Security, Premier) => Topic started by: Omonimo on February 27, 2011, 10:42:21 AM
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After upgrading Avast I reboot and the PC crash at logon with error
STOP: c000021a (Fatal System Error). The Windows Logon
Process System process terminated unexpectedly with a
status of 0xc00000080 (0x0000000 0x00000000). The system
has been shut down
I can't go also in safe mode (a similar error) wath can I do ?
Maybe Avast installed some driver in the last release ?
yours
Alberto
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Are you using XP, if so do a search on the code
Seems to be a known problem and not dependent on your AV
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Yes I use XP,
but I did a search, the rare people that received this error
(complete with 0xc00000080) seems to solve with a reistallation,
I think it depend from the AV because the error appeared at reboot after
upgrading the AV, and I saw that the upgrading downloaded a SYS file.
I don't do anything else in this session.
yours
Alberto
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Or repair
From the look of the Microsoft KB's on the subject it isn't so rare
Have you search Technet
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I tried from the CD recovery console, but the LAST KNOWN GOOD CONFIGURATION
don't work, I can try the recovery of the registry as explained in he technet,
wayh do you think ?
Alberto
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What version of XP are you running, especially the SP
XP dosn't back up all of the hives, so whilst it shouldn't make things worse....
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please follow these instructions
please upload Your minidump to so Avast staff can analyze it
to
ftp.avast.com/incoming
(files are usually located in C:\Windows\Minidump
it's .dmp file from time of the BSOD
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Dwarden
The OP can't get past logon
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he should try boot into safe mode / safe mode with networking and uninstall Avast there then
and ofcourse upload the dumps if any present
(i dont think renaming the avast asw*.sys files to e.g. asw*.sys_disabled in Windows XP will work w/o issue)
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he should try boot into safe mode / safe mode with networking and uninstall Avast there then
That won't exactly work either:
I can't go also in safe mode (a similar error) wath can I do ?
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Use a live CD and copy the file to another medium
It may help, but....
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or usage of last known working configuration tho that might be tricky
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or usage of last known working configuration tho that might be tricky
thanks for replay but in recovery console the last working configuration don't
do anything, I already try it
another thing is the asw*.sys the only file loaded by the registry ?
yours
Alberto
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up
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another thing is the asw*.sys the only file loaded by the registry ?
I think I am losing it :-[
I do not understand the quoted above
If you cannot get access to Windows - no logon, no safe mode etc how can you 'see' what is loaded by registry
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I have a utility (ERD Commander)
that permits to runa live version of windows and permit to access to the registry,
alberto
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he can disable the files from loading by renaming then (but to be fair i don't remember if it works well enough in XP)
e.g. using the recovery mode or booting into other OS etc.
the answer about is asw*.sys
there are multiple files not one, * means any text so you need disable these
if someone has WindowsXP by hand You may help by telling what all drivers are loaded on boot by Avast v6
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there are multiple files not one, * means any text so you need disable these
if someone has WindowsXP by hand You may help by telling what all drivers are loaded on boot by Avast v6
I use the v5 last update
yours
Alberto
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no suggestion ?
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digging in internet I found that some virus (ex. bagle) disabled the Safe Mode !
So it is possible that a virus crashes avast and as conseguence crash also the logo ?
Alberto
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Hello
There are 2 news, one good and one bad !
The good: I succeeded thanks to ERD Commander to return at
the last restore point, so the PC restarted.
The bad is that at the start I received from avast an error
that the version 5.1000 don't succeeded i installing himself regularity,
so the conclusion is that was just the updating to ver. 5.1000 to damage
the system, so I uninstall completely avast then I reinstall the previous version
and everything is good now.
I hope my adventure could useful to someone else
Alberto