error code: 0x00000005

Hello everyone. I am a big avast fan and use the program on many of my client’s computers. I recently discovered a problem when trying to install avast. The log is as follows:

27.03.2005 20:50:20 general: Started: 27.03.2005, 20:50:20
27.03.2005 20:50:20 general: Running setup_av_pro-26f (623)
27.03.2005 20:50:20 system: Operating system: WindowsXP ver 5.1, build 2600, sp 2.0 [Service Pack 2]
27.03.2005 20:50:20 system: Computer WinName: YOUR-SZ6X6SEFXO
27.03.2005 20:50:20 system: Windows Net User: YOUR-SZ6X6SEFXO\Owner
27.03.2005 20:50:20 general: Cmdline: /sfx /sfxstorage “C:\DOCUME~1\Owner\LOCALS~1\Temp_av_sfx.tm~a18676” /srcpath “C:\Documents and Settings\Owner\My Documents”
27.03.2005 20:50:20 general: DldSrc set to sfx
27.03.2005 20:50:20 general: Old version: ffffffff (-1)
27.03.2005 20:50:20 general: Install check: SetupVersion does NOT exist
27.03.2005 20:50:20 general: SGW32P::CheckIfInstalled set m_bAlreadyInstalled to 0
27.03.2005 20:50:20 registry: ERROR!:Cannot create registry HKLM\Software\ALWIL Software\TestSetup, error code: 0x00000005
27.03.2005 20:50:20 general: Err:Not enough user rights to continue.

Can anyone explain to me what is happenening?
Thank you all for your time and support!

Zhao 8)

“Not enough user rights to continue”

Are you running ProcessGuard?
If so, can you disable it to install avast?