Hi ppl, I have a vista laptop from dell, and since yesterday I cannot boot anymore. After starting I get the microsoft windsows loading green bar, after a while I hear a system beep, and then the screen goes black. In safe mode it tries to load windows files, and stops at aswRvrt.sys.
I saw more ppl have this problem, but solutions seem to differ. How can I proceed? Unfortunately I dont have a system restore point :o
Thanks ffor any help,
Moosey
Hi prior to the inability to boot what programmes did you update or was there a different problem
What operating system is it i.e. windows xp,Vista, 7 or 8
And is it 32 or 64 bit
Hi essexboy, thanks for your reply and help,
I haven’t been updating any software, except possibly a windows update. My operating system is Vista Home Premium 32 bit SP1…
Fot the rest i can tell that i had the memory and hard disk checked by the tools you get when you press F8, but no errors found. The standard repair function goes on literally for hours and hours with no results. I cannot get into safe mode becasue it hangs on said .sys file… So i am a bit at a loss here. Fortunately i had an old puppy linux on a usb stick 
I can remove Avast or any malware but there is no guarantee this will work as a few systems have been broken by windows updates
Download the following three programmes to your desktop :
For 32bit systems
2. Windows Vista RC
3. Farbar Recovery Scan Tool
Insert the USB stick Then run Rufus
https://dl.dropbox.com/u/73555776/rufus.JPG
Select the ISO file on the desktop via the ISO icon.
Press Start Burn
https://dl.dropbox.com/u/73555776/RufusISO.JPG
Then copy FRST to the same USB
http://dl.dropbox.com/u/73555776/frstwintoboot.JPG
Insert the USB into the sick computer and start the computer. First ensuring that the system is set to boot from USB
Note: If you are not sure how to do that follow the instructions Here
When you reboot you will see this.
Click repair my computer
https://dl.dropboxusercontent.com/u/73555776/W7%20repair.png
Select your operating system
Select Command prompt
https://dl.dropboxusercontent.com/u/73555776/W7%20Command.png
At the command prompt type the following :
notepad and press Enter.
The notepad opens. Under File menu select Open.
Select “Computer” and find your flash drive letter and close the notepad.
In the command window type e:\frst.exe and press Enter
Note: Replace letter e with the drive letter of your flash drive.
The tool will start to run.
When the tool opens click Yes to disclaimer.
https://dl.dropbox.com/u/73555776/FRST%20Start%20scan.gif
Press Scan button.
It will make a log (FRST.txt) on the flash drive. Please copy and paste it to your reply.
The first time the tool is run, it makes also another log (Addition.txt). Please attach it to your reply.
ok that was a bit difficult without a working windows pc, but here’s the file attached… I hope you can id the problem. I could not find an Addition.txt anywhere though.
tia Moosey
Hi there is no sign of malware or any broken services/drivers. I will remove Avast however, I do believe that will help I feel it is a windows update problem. Are you able to use system restore from the boot USB
Download the attached fixlist.txt to the same USB as FRST
Run FRST as before and press FIX
On completion try a normal boot
wow, removing avast did the trick, got back ito windows!! So much obliged, thanks a million!! Is there anything else i need to do, just reinstall avast?
hmm very weird thing imho, avast is still active and running, is that supposed to happen?
I just removed the drivers that load on boot
Lets reinstall Avast
Download Uninstall Utility to your Desktop.
Download the correct version of Avast
Avast Free
Avast Pro
Avast Internet Security
Avast Premier
Disconnect from the net
Uninstall Avast via control panel
[]Run aswClear
[]It will offer to reboot to safe mode … Accept that
https://dl.dropbox.com/u/73555776/aswclear.JPG
[*]Once it has rebooted to safe mode
[*]In the Select Product to Uninstall dropdown choose the version of Avast that is on your system.
[*]Press Uninstall
[*]Once complete reboot your system to Normal Mode
[*]Reinstall Avast
hmm problems problems, i got until aswclean, but now when rebooting again i cannot get into system 
Will try to run the fixlist agina and see what happens…
Remove the tick from this box in the behaviour shield settings
Hi essexboy, i cannot get into the system anymore, so i cannot get to the option you mentioned. When i redo the fixlist it mentions that these services were not found, so that’s not getting me back in . When safe booting it now stops at crcdisk.sys. Any ideas, or am i looking at a reinstall?
OK so you did not reinstall Avast ?
As it is now referencing a different file then it appears to be a system problem, could you run FRST scan again please and I will take another look
Hi essez, no i never reinstalled it, i got stuck in the procedure you suggested, at one point: after uninstalling avast through the control panel i needed to reboot in safe mode, but rebooting never succeeded anymore… Attached my latest frst scan, thanks again, much appreciated!
OK reboot the computer and immediately press and hold F8 does this give you the safe mode menu ?
If so select boot normally
If not then then use the USB and repair my computer option, there select startup repair
hi, well i get the safe modemenu, but when i select safe mode it gets into a loop, i get a mouse cursor for a while, and then it reboots. Startup repair my computer does not find any issues. Any other ideas?
What happens if you select boot normally ?
if i boot normally, i get the microsoft windows green bar that is moving as if it is loading, ten i jusyt get a black screen with a mouse cursor (i can move it around too), and then after a while it reboots again.
Download this fixlist.txt as before, run it and let me know if that helps
nice essex, it helped, i am back in for now. I got straigh into the avast uninstaller, and after that i dont see it anymore.
I don’t really dare restart the computer now, afraid i might not get back in!
What can i do to see if all is ok?
I do get a message from “intel matrix storage console”, stating that s.m.a.r.t. is reporting a hard dsik problem. Maybe that is at the heart of this problem, or could all the tweaking, restarting, cold power offs have caused that?
tia, Moosey