Unable to install Avast

[scythe944]

silly question.  Did you try right-clicking the avast setup file and click "Run as Administrator"?  the error 5 definitely means that you don't have access to something.

[Tarq57]

You should scan with one of the antirootkits I linked above, just to b sure.
I guess you put AVG back on temporarily while Avast wouldn't install? Or is your last scan with AVG sometime before this all started?
Have you (or anyone else) ever, ever had Norton or McAfee on it?
Running out of ideas.
edit Nice one, scythe, sure hope that's the answer!

[balado]

silly question.  Did you try right-clicking the avast setup file and click "Run as Administrator"?  the error 5 definitely means that you don't have access to something.

Sure I run it  as administrator. it so obvious.., its the first thing I did.
And if I were denied the access i know how to get it.Please any other ideas?
Thanks.

[balado]

You should scan with one of the antirootkits I linked above, just to b sure.
I guess you put AVG back on temporarily while Avast wouldn't install? Or is your last scan with AVG sometime before this all started?
Have you (or anyone else) ever, ever had Norton or McAfee on it?
Running out of ideas.
edit Nice one, scythe, sure hope that's the answer!

Before all this started I have been using Avast.I started using AVG after I have problems with Avast.

[balado]

You should scan with one of the antirootkits I linked above, just to b sure.
I guess you put AVG back on temporarily while Avast wouldn't install? Or is your last scan with AVG sometime before this all started?
Have you (or anyone else) ever, ever had Norton or McAfee on it?
Running out of ideas.
edit Nice one, scythe, sure hope that's the answer!

Im the only one who uses this computer, and neither  Norton nor McAfee  were ever installed in this computer.
(I also have an old computer with windows XP, and Avast is runnig nice.)

[Tarq57]

I'm almost out of ideas, I'm afraid. There's some things I'd try in the way of troubleshooting, but without a real idea of how they'd cause the problem.
1) Try a couple of rootkit scans.

Some rootkits, and indeed, a lot of the serious malwares try to install unobtrusively. (Not like the rogue antivirus apps, where you know something is wrong.) They want to remain hidden, and can often do so using rootkit techniques. The files are hidden in what's called the alternate data stream (ADS - a feature of NFTS systems.) A lot of the regular scanners cannot see them to find and kill.

I would have thought that of the scans you have run, Superantispyware might have been able to find oone, but it is possibly worth trying with another. I'd try a couple of these http://forum.avast.com/index.php?topic=38983.msg327358#msg327358

2) Disable the TeaTimer in Spybot, if active. Could possibly be blocking something.

3) Search the computer for the "NTDLL.DLL" file. It should be in at least two locations. Compare them and advise if their is any differences in the sizes, versions.

I've taken the liberty of posting your original screenshots below, to make it easier for anyone more expert than me (there are quite a few  ) to maybe give advice, here. I hope all this helps and leads to a resolution.

[balado]

I'm almost out of ideas, I'm afraid. There's some things I'd try in the way of troubleshooting, but without a real idea of how they'd cause the problem.
1) Try a couple of rootkit scans.

Some rootkits, and indeed, a lot of the serious malwares try to install unobtrusively. (Not like the rogue antivirus apps, where you know something is wrong.) They want to remain hidden, and can often do so using rootkit techniques. The files are hidden in what's called the alternate data stream (ADS - a feature of NFTS systems.) A lot of the regular scanners cannot see them to find and kill.

I would have thought that of the scans you have run, Superantispyware might have been able to find oone, but it is possibly worth trying with another. I'd try a couple of these http://forum.avast.com/index.php?topic=38983.msg327358#msg327358

2) Disable the TeaTimer in Spybot, if active. Could possibly be blocking something.

3) Search the computer for the "NTDLL.DLL" file. It should be in at least two locations. Compare them and advise if their is any differences in the sizes, versions.

I've taken the liberty of posting your original screenshots below, to make it easier for anyone more expert than me (there are quite a few  ) to maybe give advice, here. I hope all this helps and leads to a resolution.

Thanks a lot, I will do that.

[Tarq57]

Just for info, when you select "quote" in a reply, you should start typing your own reply message after the close-quote box : [/quote]. For some reason the cursor lands just prior to it, by default.

[balado]

Just for info, when you select "quote" in a reply, you should start typing your own reply message after the close-quote box :

. For some reason the cursor lands just prior to it, by default.
[/quote]
Sorry, you right.

[balado]

I'm almost out of ideas, I'm afraid. There's some things I'd try in the way of troubleshooting, but without a real idea of how they'd cause the problem.
1) Try a couple of rootkit scans.

Some rootkits, and indeed, a lot of the serious malwares try to install unobtrusively. (Not like the rogue antivirus apps, where you know something is wrong.) They want to remain hidden, and can often do so using rootkit techniques. The files are hidden in what's called the alternate data stream (ADS - a feature of NFTS systems.) A lot of the regular scanners cannot see them to find and kill.

I would have thought that of the scans you have run, Superantispyware might have been able to find oone, but it is possibly worth trying with another. I'd try a couple of these http://forum.avast.com/index.php?topic=38983.msg327358#msg327358

2) Disable the TeaTimer in Spybot, if active. Could possibly be blocking something.

3) Search the computer for the "NTDLL.DLL" file. It should be in at least two locations. Compare them and advise if their is any differences in the sizes, versions.

I've taken the liberty of posting your original screenshots below, to make it easier for anyone more expert than me (there are quite a few  ) to maybe give advice, here. I hope all this helps and leads to a resolution.

OK, I  have checked the DLLs and both look ok and the same, same size, same version.
only different locations.(system32 and x86)
Tea Timer was not active.
I have installed Trend Micro trial version, and scan for virus and spyware, and it came out "0"
infeccions.
What else?

[Tarq57]

It's not trend micro trial, it's (either) trend micro rootkit buster, (and/or) Panda rootkit cleaner (and/or) f-secure blacklight. (All three are linked to in the linked post by DavidR above.)
For additional rootkit scanners, if for any reason those three are unavailable, have a look here: http://andymanchesta.com/, click on the "antirootkit" button. If scripting is allowed in your browser, mousing over each of the download buttons will present an information blurb.

[balado]

It's not trend micro trial, it's (either) trend micro rootkit buster, (and/or) Panda rootkit cleaner (and/or) f-secure blacklight. (All three are linked to in the linked post by DavidR above.)
For additional rootkit scanners, if for any reason those three are unavailable, have a look here: http://andymanchesta.com/, click on the "antirootkit" button. If scripting is allowed in your browser, mousing over each of the download buttons will present an information blurb.

I have scanned with some of the rootkits in that page above, and all came out "0"

[Tarq57]

Well, isn't it nice to have confirmed what you already thought was the case.
Not so much from this end, though.
Anyway, (grasps skinny skein of straw with both hands), I think by a post of yours earlier that you are familiar with regedit? You said you'd searched for Avast entries there.
So a couple more things to try might be to run a similar search for anything "AVG" and "Grisoft" and "Alwil" (three separate searches.)
You could also try running the Avira registry cleaner, number 6 here http://www.avira.com/en/support/support_downloads.html.
Don't forget to backup the registry first. Tutorial (if needed) here http://computerperformance.co.uk/vista/vista_registry.htm
What I'm hoping is that there may be a legacy key somewhere, belonging to either Avast or AVG, for which you need to reset the permission to remove.
To tell the truth, I also think the chances of finding one are a bit slim. But you're obviously fairly determined to get Avast working again, so it's worth a crack. (Crack here to mean attempt;try; effort, not hack; keygen;pirate.)
Fingers crossed.

[balado]

Well, isn't it nice to have confirmed what you already thought was the case.
Not so much from this end, though.
Anyway, (grasps skinny skein of straw with both hands), I think by a post of yours earlier that you are familiar with regedit? You said you'd searched for Avast entries there.
So a couple more things to try might be to run a similar search for anything "AVG" and "Grisoft" and "Alwil" (three separate searches.)
You could also try running the Avira registry cleaner, number 6 here http://www.avira.com/en/support/support_downloads.html.
Don't forget to backup the registry first. Tutorial (if needed) here http://computerperformance.co.uk/vista/vista_registry.htm
What I'm hoping is that there may be a legacy key somewhere, belonging to either Avast or AVG, for which you need to reset the permission to remove.
To tell the truth, I also think the chances of finding one are a bit slim. But you're obviously fairly determined to get Avast working again, so it's worth a crack. (Crack here to mean attempt;try; effort, not hack; keygen;pirate.)
Fingers crossed.

After followed all the instructions above, with not positive results, I giving up my effords to get Avast to work.(for now).In the future, when I repair my computer to the factory settings, i'll try again.
Thanks a lot!

[Tarq57]

OK, and fair enough. Don't think anyone could say you didn't give it a fair shot. I'm just a bit sorry that I couldn't come up with the answer, or the techy skill to provide one. I was kinda hoping someone else might come up with it, but I guess all likely remedies were attempted.
I'd recommend Avira as being a good free alternative.
Good luck.