Failed installation error - User "SYSTEM" has previously initiated install - resolved

When you try re-install NOD32 or Eset ESS you may get following error:

User "SYSTEM" has previously initiated an install for product Eset Nod 32. That user will need to run the install again before they can use that product. Your current install will now continue.

The installation will break off. Eset uninstall tool didn't help.

The solution is to run the installation as a system user, which is like a root un Windows. Here is how you do it:

http://superuser.com/questions/154616/only-one-install-then-have-to-restart/348809#348809

Here is the complete command line: c:\[LOCATION OF THE FILE]\psexec -sid C:\Windows\System32\msiexec.exe /i c:\[LOCATION OF THE FILE]\Eset_Nod32_Setup.msi