Big problem with licence

[neboland]

I have "avast! Home" last few years and succesful use program.
But I use some software called "RegSeek" and with him delete some Registry Entries.
After that I have a problem.
Every time I login on my PC (win XP), this messege show "Licence Key is not entered".  When I try to enter either my valid licence key, or even a new licence Key, it say "Invalid Licence number".

* Not a leading or trailing space problem
* Am copying and pasting - no problem there
* Have tried uninstalling and reinstalling from my account
* I refresh my licence code with valid email and regular informations

If someone can help me, I thanks him. Thanks

[ardvark]

Hi...

You might want to try either a repair installation (go to the Control Panel, "Add/Remove Programs," then click on avast,) and if that doesn't work, uninstall avast using this utiilty...

http://www.avast.com/eng/avast-uninstall-utility.html

and then download and install a fresh copy.

Let us know if this helps!

Best Regards...

[neboland]

I sorry, I forgot to say this...
I reinstall avast! Home, normal from XP safe mode with program downloaded from www.avast.com,
then I install again avast! Home, and in this situations are same messege

[Lisandro]

I suggest an installation from the scratch:

1. Uninstall avast from Control Panel first.
2. Boot.
3. Download the latest version of Avast Uninstall and use it for complete uninstallation.
4. Boot.
5. Install again the latest avast! version.
6. Boot.
7. Check and post the results.

[hines232]

Did You use "RegSeek" or "RegSeeker". If you were using "RegSeeker", It has a backup Before deleting box to check. If it was checked, use the backup to restore your registry to what it was. (only delete the green, I was told, and be carefull of that also.)

[neboland]

Yes I use "RegSeeker", and some files with backup work properly, but few (two), don't work...
They says:Error accessing the registry! This is backup files:CLEAN and SOFTWARE...
I try that in SAFE mode, too. Same results...

Ok I know now that I broke some important things, and i must install another Antivirus... Avast is good, but i don't have any other idea for solving this problem...
I will use Avast again when I install fresh copy of Windows, for few months...

Thanks!

[Lisandro]

I must install another Antivirus...

Most probably, if you delete the registry key
HKEY_LOCAL_MACHINE\SOFTWARE\ALWIL Software\Avast
you could install it without license problems...