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Consumer Products => Avast Free Antivirus / Premium Security (legacy Pro Antivirus, Internet Security, Premier) => Topic started by: gdchansen on July 24, 2014, 01:39:35 AM

Title: Computer won't boot - Safe Mode Hangs on aswrvrt.sys
Post by: gdchansen on July 24, 2014, 01:39:35 AM
My Windows 7 PC won't boot. When I try to boot to safe mode, it hangs on C:\Windows\System32\Drivers\aswrvrt.sys until the computer reboots. I have already tried to use the Windows Recovery tool. I have run the FRST tool (FRST.txt is attached). Any help would be much appreciated!
Title: Re: Computer won't boot - Safe Mode Hangs on aswrvrt.sys
Post by: SafeSurf on July 24, 2014, 09:16:59 AM
Please go to https://forum.avast.com/index.php?topic=53253.0 (https://forum.avast.com/index.php?topic=53253.0) and follow the directions for attaching the other logs needed:

- MBAM
- aswMBR.exe

After doing this, do not attempt to make any changes to your machine (this includes trying to fix it).  After you have posted your logs, someone will be along to review them.  Thank you.
Title: Re: Computer won't boot - Safe Mode Hangs on aswrvrt.sys
Post by: essexboy on July 24, 2014, 02:49:01 PM
What happened prior to the non-boot as several system files are missing

First from the command prompt type in the following command :

chkdsk c: /r

Once that has completed try a normal boot.  If that fails then run FRST and in the Search box type the following :

IERTUTIL.dll;URLMON.dll;WININET.dll

Then press the search files button. 
On completion a log called search.txt will be generated post that
Title: Re: Computer won't boot - Safe Mode Hangs on aswrvrt.sys
Post by: gdchansen on July 25, 2014, 01:11:57 AM
This boot issue started when I tried to restart my computer after installing updates (Windows, iTunes, and [possibly?] avast). I hadn't restarted my computer in a while, so I'm not sure what updates were applied.

I have the chkdsk c: /r running through the System Recovery Options command console. It seems like it is hung at 34% of the "Windows is verifying free space..." check.  What is weird is that the command caused windows to search my backup hard drive. The file system is FAT32 instead of NTFS and is labeled as FANTOM.

Should I stop the current check and try another drive letter, let the check continue, or should I shut down and unplug my spare HD?

Any help is greatly appreciated! Thank you!
Title: Re: Computer won't boot - Safe Mode Hangs on aswrvrt.sys
Post by: essexboy on July 25, 2014, 01:45:04 PM
Yes stop that and confirm that it is c drive where the OS is residing
Title: Re: Computer won't boot - Safe Mode Hangs on aswrvrt.sys
Post by: gdchansen on July 25, 2014, 08:22:12 PM
I stopped the chkdsk on C and switched to the one showing as E (which is the one that should be my C drive and has Windows on it). It completed and restarted. I was unable to boot (it got to the Windows Logo Screen, held there for a while, and rebooted).

I then ran the FRST search. I have attached the log from that. Sorry for the delay, I had to wait overnight for the chkdsk to complete and then I had work.
Title: Re: Computer won't boot - Safe Mode Hangs on aswrvrt.sys
Post by: essexboy on July 25, 2014, 08:47:13 PM
Download the attached fixlist.txt to the same location as FRST
Run FRST and press fix.
On completion try a normal boot

Title: Re: Computer won't boot - Safe Mode Hangs on aswrvrt.sys
Post by: gdchansen on July 26, 2014, 03:55:30 AM
I attempted the fixlist on the computer. When I rebooted, the computer held at the Windows logo screen until it restarted. I tried to boot into safe mode and it is still hanging at aswrvrt.sys. Here is the fix log:

Fix result of Farbar Recovery Tool (FRST written by Farbar) (x64) Version: 24-07-2014
Ran by SYSTEM at 2014-07-26 01:23:33 Run:1
Running from H:\
Boot Mode: Recovery
==============================================

Content of fixlist:
*****************
Replace: C:\Windows\winsxs\x86_microsoft-windows-i..tocolimplementation_31bf3856ad364e35_9.4.8112.20580_none_1ab05334d5689174\wininet.dll C:\Windows\System32\WININET.dll
Replace: C:\Windows\winsxs\x86_microsoft-windows-i..ersandsecurityzones_31bf3856ad364e35_9.4.8112.20580_none_cdaa77930a5f6ae1\urlmon.dll C:\Windows\System32\URLMON.dll
Replace: C:\Windows\winsxs\x86_microsoft-windows-ie-runtimeutilities_31bf3856ad364e35_9.4.8112.20580_none_606b0a10c019afd1\iertutil.dll C:\Windows\System32\IERTUTIL.dll

*****************

Could not find C:\Windows\System32\WININET.dll.
C:\Windows\winsxs\x86_microsoft-windows-i..tocolimplementation_31bf3856ad364e35_9.4.8112.20580_none_1ab05334d5689174\wininet.dll copied successfully to C:\Windows\System32\WININET.dll
Could not find C:\Windows\System32\URLMON.dll.
C:\Windows\winsxs\x86_microsoft-windows-i..ersandsecurityzones_31bf3856ad364e35_9.4.8112.20580_none_cdaa77930a5f6ae1\urlmon.dll copied successfully to C:\Windows\System32\URLMON.dll
Could not find C:\Windows\System32\IERTUTIL.dll.
C:\Windows\winsxs\x86_microsoft-windows-ie-runtimeutilities_31bf3856ad364e35_9.4.8112.20580_none_606b0a10c019afd1\iertutil.dll copied successfully to C:\Windows\System32\IERTUTIL.dll

==== End of Fixlog ====
Title: Re: Computer won't boot - Safe Mode Hangs on aswrvrt.sys
Post by: SafeSurf on July 26, 2014, 10:02:23 AM
Please attach your files to your posts.  Thank you.  :)
Title: Re: Computer won't boot - Safe Mode Hangs on aswrvrt.sys
Post by: essexboy on July 26, 2014, 02:30:31 PM
OK the missing files are replaced, could you now run a fresh FRST scan to ensure nothing else is missing
Title: Re: Computer won't boot - Safe Mode Hangs on aswrvrt.sys
Post by: gdchansen on July 26, 2014, 03:54:42 PM
here is the search log!
Title: Re: Computer won't boot - Safe Mode Hangs on aswrvrt.sys
Post by: essexboy on July 26, 2014, 04:40:28 PM
A few more missing ones.  Some I will replace now others we will have to search for

REPLACE

Download the attached fixlist.txt to the same location as FRST
Run FRST and press fix.

Once that has completed run FRST and in the Search box type the following :

volsnap.sys;Bootcat.cache

Then press the search files button. 
On completion a log called search.txt will be generated post that
Title: Re: Computer won't boot - Safe Mode Hangs on aswrvrt.sys
Post by: gdchansen on July 26, 2014, 05:00:45 PM
I did the fix and the search. Here are the logs for both (i don't know if you need the fix log, but figured it would save some time if you needed it!)
Title: Re: Computer won't boot - Safe Mode Hangs on aswrvrt.sys
Post by: essexboy on July 26, 2014, 05:06:33 PM
OK this looks to be the last file replacement

Download the attached fixlist.txt to the same location as FRST
Run FRST and press fix.
On completion try a normal boot
Title: Re: Computer won't boot - Safe Mode Hangs on aswrvrt.sys
Post by: gdchansen on July 26, 2014, 05:34:20 PM
Well, it still didn't boot -- Held at the Windows Logo and restarted itself. I launched FRST and ran another scan. I attached the fix log and the new scan.
Title: Re: Computer won't boot - Safe Mode Hangs on aswrvrt.sys
Post by: essexboy on July 26, 2014, 05:59:05 PM
Could you now run startup repair at least 3 times please, rebooting between each we need to regenerate the boot cache and this should do it
Title: Re: Computer won't boot - Safe Mode Hangs on aswrvrt.sys
Post by: gdchansen on July 26, 2014, 06:36:00 PM
Ugh -- I must have really messed up my computer this time. It is still restarting at the Windows Logo screen.
Title: Re: Computer won't boot - Safe Mode Hangs on aswrvrt.sys
Post by: essexboy on July 26, 2014, 07:15:45 PM
It appears that the boot cache generator at C:\Windows\System32\catroot\{F750E6C3-38EE-11D1-85E5-00C04FC295EE} is badly broken, in which case the only alternative is to re-install windows.  Do you have a disc image ?  If not you will have to back up your data using something like the reatogo desktop
Title: Re: Computer won't boot - Safe Mode Hangs on aswrvrt.sys
Post by: gdchansen on July 26, 2014, 07:19:28 PM
Ok, I can get at the files to backup all my important documents. I was kind of expecting this. Thank you very much for all of your assistance!
Title: Re: Computer won't boot - Safe Mode Hangs on aswrvrt.sys
Post by: essexboy on July 26, 2014, 07:29:30 PM
Sorry it was not better news
Title: Re: Computer won't boot - Safe Mode Hangs on aswrvrt.sys
Post by: erikhrm0 on May 12, 2015, 02:31:50 PM
i had the same error, two times on a pc with 2 win7 installations, defintivly you must deinstall avast prior install the grafik card driver!!!! or later, but with trial with avast uninstall tool...
greeting
Title: Re: Computer won't boot - Safe Mode Hangs on aswrvrt.sys
Post by: buythiscomputer on June 21, 2015, 03:39:49 PM
Hello, I am sorry but how to launch these programs when computer does not even boot in safe mode ?

Thank you for your help and I will open a new thread as requested when I will know how to check my computer.





Please go to https://forum.avast.com/index.php?topic=53253.0 (https://forum.avast.com/index.php?topic=53253.0) and follow the directions for attaching the other logs needed:

- MBAM
- aswMBR.exe

After doing this, do not attempt to make any changes to your machine (this includes trying to fix it).  After you have posted your logs, someone will be along to review them.  Thank you.
Title: Re: Computer won't boot - Safe Mode Hangs on aswrvrt.sys
Post by: dubuque_1 on December 24, 2015, 04:07:10 AM
Wondering the same things, I consistently see mention of saving something to the desktop,. when the title clearly indicates that we can not boot into windows either regular or safe mode, and safe mode stopping at the aswrvrt.sys file
Title: Re: Computer won't boot - Safe Mode Hangs on aswrvrt.sys
Post by: bob3160 on December 24, 2015, 01:54:54 PM
@ dubueue_1, buythiscomputer anderikhrm0,
If you have a problem, please start your own topics.
Fully describe your problem and give us some information about your system,
what other security programs you're running and, how you removed your old Antivirus before installing Avast.


 
Title: Re: Computer won't boot - Safe Mode Hangs on aswrvrt.sys
Post by: Eddy on December 24, 2015, 02:01:00 PM
Do not wonder on how to run the tools, read the article.
It is explained there what to do.