System won't boot after Avast free update

Avast Free Antivirus / Premium Security
1

Hey folks,

I run Win 7 with the free version of Avast. I generally keep it up to date. Yesterday I was on the PC for the first time in a few days and noticed the engine needing updating. I did so, but then upon reboot the system never gets past the Windows icon. I tried booting into safe mode, same thing, except that it hangs after aswRvrt.sys.

I do have Comodo installed, if that is relevant.

Any suggestions? I tried loading the Windows repair tools but that is hanging too!

2

See: “If you cannot Boot the computer”
→ https://forum.avast.com/index.php?topic=53253.0

3

Hi and thank you for the prompt response. I created the Reatogo CD and booted from it, and just after it goes to a Windows loading logo, it bluescreens (twice in a row now).

Suggestions?

4

Wait a bit, I’ll PM Essexboy…

5

I took a picture of the blue screen, if it would help, but I am on my phone, and it won’t let me attach it to my post, because it’s too large. But honestly, there’s not much information in it.

6

Just wait a bit…

7

What code does the bluescreen give ?

8

In the technical section it just gives me a hex code of sorts. If you can PM me am email address I can email it to you…

9

Is there a stop code like 0x000345 or similar

10

0x0000007b

11

OK that indicates an inaccessible boot device. Do you have the recovery console installed on this system or the windows CD. If not I can give instructions to create a windows 7 one. But I must know whether it is 32 or 64 bit. You will need access to another computer to create it

12

I have a recovery cd. It is 64 bit.

Incidentally, I tried booting with the windows cd and repairing but it froze right on the screen where I should be able to click “repair”.

13

That sounds like a hardware problem to me… How many disc drives do you have in the computer

14

Three.

15

OK unplug all disc drives except the master with windows on and then try a boot

16

So, that is exactly what I was trying, and now it boots.

So I guess it’s a just an amazingly well timed hardware problem??

17

If it booted after the drives were removed then one is bad, if you just fiddled with the connections then one was loose