Not enough user rights

Avast Free Antivirus / Premium Security
1

I’ve installed the program and after I run it I get the message that I do not have enough user rights. This pops us:
13.04.2009 08:52:31 general: Started: 13.04.2009, 08:52:31
13.04.2009 08:52:31 general: Running setup_av_pro-537 (1335)
13.04.2009 08:52:31 system: Operating system: WindowsXP ver 5.1, build 2600, sp 2.0 [Service Pack 2]
13.04.2009 08:52:31 system: Memory: 33% load. Phys:1393396/2088316K free, Page:2145664/2705640K free, Virt:2069380/2097024K free
13.04.2009 08:52:31 system: Computer WinName: JULIO
13.04.2009 08:52:31 system: Windows Net User: JULIO\Noel
13.04.2009 08:52:31 general: Cmdline: /sfx /sfxstorage “C:\DOCUME~1\Noel\LOCALS~1\Temp_av_sfx.tm~a01328” /srcpath “C:\DOCUME~1\Noel\Desktop” /sfxname “setupeng”
13.04.2009 08:52:31 general: DldSrc set to sfx
13.04.2009 08:52:31 general: Old version: ffffffff (-1)
13.04.2009 08:52:31 registry: Deleted registry: Software\Alwil Software\Avast\4.0\UpdateReady
13.04.2009 08:52:31 general: Install check: SetupVersion does NOT exist
13.04.2009 08:52:31 general: SGW32P::CheckIfInstalled set m_bAlreadyInstalled to 0
13.04.2009 08:52:31 registry: ERROR!:Cannot access registry HKLM\SYSTEM\CurrentControlSet\Services\avastTestService, error code: 0x00000002
13.04.2009 08:52:31 general: Err:Not enough user rights to

I AM the administrator and even check in the control panel. There is only one user, me, and it lists me as the admin. Please help! I really need this!

2

This is rather strange… the error code 0x00000002 means “file not found”, so the interpretation “not enough access right” is wrong. However, I don’t see how such an error could happen.
Can you open regedit, navigate to HKEY_LOCAL_MACHINE\SYstem\CurrentControlSet\Services and create a new subkey there, called “avastTestService” (and delete it subsequently)?

3

It will not let me write to the registry

4

So, you successfully navigate to HKLM\System\CurrentControlSet\Services key - but you can’t create a new subkey there?