I just did a clean install of Windows 7 64-bit and then updated to SP1. Installed Internet Explorer 10 for Windows 7 64-bit. I get the above error message after installing install_flashplayer11x32ax_gtbp_chrd_aih.exe
This is the version that the Abobe site auto-detects for me. I assume I should be using a version with '64' in the title but can't find an alternative download from Adobe.
I found a reference on the Microsoft IE 10 site that the 64-bit version switches back and forth between 32 & 64 bit. Could that be the issue in the auto-detect?