I have a laptop with Windows 7 on it. I recently put AVAST on it. Since then my computer will not boot up. I have even tried booting in SAFE MODE. When I go to SAFE MODE I get a screen that is black with a lot of LOADED:… rows. The last row it comes to says Loaded:\Windows\System32\Drivers\aswRvrt.sys
The computer will not go any further than this. I have been told that this has to do with AVAST and I needed to get on here to see if anyone could help me get my computer “unstuck”. I have 100s of pictures and videos on there that I haven’t backed up yet and really do not want to lose them. If anyone can help me, please do!!
aswRvrt.sys is detected as an unsigned driver by windows 7 - thus you get the boot problem.
How I solved the issue:
During boot-up, continuously press to get to Advanced Boot Options. Note: On some systems, you need to first press to go into Boot Menu, then press to reach Advanced Boot Options.
When the menu appears, use the DOWN arrow key to scroll to “Disable Driver Signature Enforcement.”
Press .
Continue the boot process.
After your computer has completed the boot process you have a couple of options,
Here’s what I found to be the best solution: Permanently disable driver signature enforcement by installing a program called ReadyDriverPlus:
If you don’t see a system reserved partition just go ahead and run the installer. It will install to “C:\Boot” by default if “C:” is your windows partition.
Once installed - reboot and you’ll be presented with a modified boot screen. Just leave it alone and don’t press anything. The choices will be made automatically for you and your computer will boot with driver signature enforcement disabled.
If you later encounter another blue screen I suggest booting into safe mode then select Start > Run and type “chkdsk /f /r” (no quotes) then press enter. Then you’ll be asked if you wish to schedule a disk check on the next boot. Type “Y” (no quotes) and press enter - then reboot.
Another method to disable driver signature enforcement: Driver Signature Enforcement Overrider 1.3b
It’s a little more complicated - basically it involves enabling “test mode” then manually signing the driver by entering the files location.
C:\Windows\System32\drivers\aswRvrt.sys
Then for good measure list any other unsigned drivers using the sigverif.exe tool - Start > Run > type “sigverif.exe” (no quotes) and manually sign any other unsigned drivers using the above process.
Or you could just use DriverView 64 bit version from Nirsoft to list drivers. In the “Description” field any blank entry is an unsigned driver!
Until Windows 7 will behave itself when running drivers that are not digitally signed by Microsoft the above is a workaround. If a user feels that security is lessened by using either or both of these methods they can always beef up security by adding an application white-listing component such as Secrue APlus (No AV version):
It can be set to either warn or block if an unsigned file attempts to run although I suspect that the average user will struggle to configure the program to get the best use from it.
Microsoft’s policy to allow only signed drivers to be loaded by the OS can be considered an extra safety measure that aims to make your system a bit more secure and prevent malicious code from execution. However if you wish to install software when the manufacturer has not obtained digital signatures then you options are either:
It may work, however if it does not then copy the following programme to a USB stick.
Please download Farbar Recovery Scan Tool and save it to the USB.
Then select repair my computer
From there select Command prompt
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:\frst64.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.