Admin is unabled to install Flash ActiveX due to missing rights

Hello!

I have been using FlashPlayer ActiveX for a very long time without any problems. Now I tried to upgrade to 11.2.202.253 ActiveX and received the fllowing error message:

"A neccesary file (C:\Windows\system32\Macromed\Flash\FlashUtil32_11_2_202_235_ActiveX.exe:5) could not be written due to missing access rights

." (I translated this from the orinial german error message, so the original english one might look different).

This happens on Windows 7 32bit Home Premium.

I am logged in with admin-rights (in fact I have tried with three diferent admin account).

The Flashplugin for Firefox installe without any problem.

Here is my flashinstalllog:

=O====== M/11.2.202.235 2012-05-21+13-23-59.004 ========

0000 00000010 "D:\Users\Public\install_flash_player_ax_32bit.exe"

0001 00001036 Software\Macromedia\FlashPlayer\SafeVersions/11.0 2

0002 00001036 Software\Macromedia\FlashPlayerActiveX/PlayerPath 2

0003 00001036 Software\Macromedia\FlashPlayer\SafeVersions/11.0 2

0004 00001036 Software\Macromedia\FlashPlayerActiveX/PlayerPath 2

0005 00000020 C:\Windows\system32\FlashPlayerCPLApp.cpl

0006 00001037 SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Adobe Flash Player ActiveX/ 2

0007 00000013 C:\Windows\system32\Macromed\Flash\Flash32_11_2_202_235.ocx

0008 00000015 C:\Windows\system32\Macromed\Flash\FlashUtil32_11_2_202_235_ActiveX.exe

0009 00001031 C:\Windows\system32\Macromed\Flash\FlashUtil32_11_2_202_235_ActiveX.exe:5

0010 00000016 C:\Windows\system32\Macromed\Flash\FlashUtil32_11_2_202_235_ActiveX.dll

0011 00001026 C:\Windows\system32\Macromed\Flash\FlashUtil32_11_2_202_235_ActiveX.dll 5

0012 00000021 C:\Windows\system32\Macromed\Flash\FlashPlayerUpdateService.exe

0013 00001106

0014 00001106

=X====== M/11.2.202.235 2012-05-21+13-30-03.038 ========

Any ideas / any help?

Thanks!