I work as an IT Technician and today we have had two Computers Come in after updating to Avast 2014, They get to the Welcome Screen in Windows XP them Restart in a continuous loop I have found two files that have been causing an issue aswrvrt.sys stopping me booting into Safe Mode as it hangs on this, & fssfltr_tdi.sys which is displayed in BSOD straight after the welcome screen I found removing these files (C:\Windows\System32\Drivers) allows me to boot back into Windows and Finish the Update. To remove them I used Kaspersky Boot Disk to browse the Drive.
There are others reporting similar problems:
http://forum.avast.com/index.php?topic=137154.0
http://forum.avast.com/index.php?topic=137454.0
http://forum.avast.com/index.php?topic=136785.msg1006128#msg1006128
Send them here As I have applied this Repair Twice today and it has resolved the issues both times 
It is unfortunate to see but Hopefully it gets fixed quickly before many more people get effected.
Thanks,
some of us have come near to this conclusion.
There are those who have deleted these files using another hard drive and those who used a tool on boot cd rom.
However I hope avast will not be long to give users an official fix
I would like to know the number of pc out to date because they can’t do what we have done.
it looks like a virus attack, the funniest in this story is that it comes from the antivirus itself ;D
This file is part of Family Safety Filter Driver (TDI). by Microsoft
Really sorry for the troubles. We are just investigating the causes. Please if you still experience issues on WinXP, please would you be able to zip folder - C:\Documents and Settings\All Users\Application Data\AVAST Software\Persistent Data\Avast\Logs and send it to ftp://ftp.avast.com/incoming/
I have 13 (THIRTEEN!!!) clients calling with blue screens. It’s going to be a really busy Friday. What a cluster phuck!
folder zipped , I hope I have done it right
I have made two calls to the AVAST helpdesk. Both times, they refused to look at this forum page and insisted this had nothing to do with their antivirus software update. They were more than willing to charge me $179.00 to fix it for me. I am not using the free version of their software. I had paid for two years of premium service and HAD been happy up until now. My service expires in January 2014 and unless they get this fixed for free in the next few days, I will be switching to new ant-virus software or as much as I can’t stand the company, I will finally switch to an Mac. Unhelpfuldesk employees Louis and Michael (10COLcaller#1), I hope you have stock in your company, and I hope you lose your shirts.
Just called for third time. Thanks For hanging up on me Crystal. At the time of this call, there had been 619 people that had viewed this thread. The numbers with this problem are growing quickly. Crystal had good news for me however. She made another pitch that Avast could fix this problem for a mere $179.00 for my one computer. Man, she is quite the IT professional. I can’t wait to renew my anti virus contract in January.
@ coolpoints
People viewing it doesn’t mean that they all have this problem or they are unique views.
Have you done as suggested and upload the folders as requested by hectic-mmv (avast team) in Reply #5 above.
I would leave the support phone number alone, it is a third party support company (not going direct to avast) and you are more likely to find experienced avast users right here (including an avast team member in the topic requesting information).
EDIT: When you zip the requested folders give it a unique name, e.g. your username + log-folder.zip, etc. coolpoints-log-folder.zip.
Post again and give the file name that you uploaded so that hectic-mmv expects it and it can be identified.
hello,
I just send file named “Persistant Data.rar” without my name (on the other hand there is a “readme” with info inside)
Have I to send it again with other “rar” name (pseudo)?
Or you have found it ? (10/25/2013 at 10:40)
Thanks
You’re not talking to Avast when you call. They use a 3rd party. It used to be a company called iyogi. Eventually, after many complaints (including from me) about the company pushing unnecessary and expensive support contracts, they were dropped. Here’s an article explaining it:
http://krebsonsecurity.com/2012/03/avast-antivirus-drops-iyogi-support/
Now, it appears that they (Avast) are in bed with yet another 3rd party support company (or maybe it’s just iyogi reincarnated) doing exactly the same thing. Apparently, the lesson has not been learned.
But you should learn this lesson: Avast does not support their own product (by phone) - they farm it out. The do NOT answer their own phones. Don’t waste your time calling.
Please report it to Adam Riley: http://forum.avast.com/index.php?action=profile;u=16074
I have problems with Avast after installing Avast for the first time.
Everything is read only, and stays read only.
Regards,
olaf
How can I find out which Windows files Avast is conflicting with, upon OS boot-up? Is there a particular program I can use?
Hi Glad :o to know that I am not the only one! NOT GLADE and very disappoint of that issue! I use License Avast for many years, without problem. From last Sunday all my computer using Windows XP Professional SP3 become crash with that blue screen error after update to version 2014! I took out avast reinstall it but after that was the firewall or the anti-virus himself who doesn’t work anymore! All my computer was working perfectly before. I have 1 computer running windows Vista Home Premium, 1 computer running windows Vista Ultimate, 1 Window 7 Professional they all running ok after the upgrade of Vista Internet security 2014 but the 4 computer running Window XP Professional SP3 all crashes!! I will need to waist a day ( take a 3 hours ride ferry to go to fix one of my computer that I cannot connect with my staff anymore via computer on another island and again the ferry to come back) Very hope Avast will release a Patch ASAP!!! I will try to delete the two files that you report to see if it’s working! I recommended Avast to many of my customers for many years and was thinking to upgrade to Avast Premier but now I doubt about it! you should leave the previous version available in case the version 2014 doesn’t work! now i need to use other company anti-virus company to try to fix the problem cause by this update! >:( my subscription for all my computer will end beginning of 2014 not sure if I will renew it if they don’t fix fast the bug or at least send a message to their license user with a link to reinstall the previous version until the bug is fix!) >:(
Cebuman
CNA, A+, MCP, MCSE
Philippines
Hello,
First just a word here from an avast guy to tell us if they still work on the issue or have permanently banned xp users they support.
I know it’s only been ten days since I sent the log to the support and return back to version 8 works well, but I will not even try to install again and again version 9 without fix or
elucidation…
Yeah, I had a paid version of Avast too, it also said My subs had run out. and it wasn’t even time up. anyway I deleted avast and got a year free Kaspersky internet security from Barclays bank. It run a full scan before start up. A bit of a learning curve, but looks OK. things are still a bit twitchy. like “spaywareblaster” it keeps turning blocked sites off ?? any ideas. It might be kaspaskey, i’ll look on some posts and see what I can pick up… I also removed malwarebytes while I loaded kaspasky, You know how finicky anti-virus programmes are over other prog So I’ll reload that now. Keep up the Great work posters…I think this has left a lot of People without a PC…not good at all.
Hello,
What about fssfltr_tdi.sys and WL safety parental issue with 9.0.2007 ?
Is there xp users already unheeded?