Strange error message when launching iTunes 9.0 in Win7 (64bit)

"The installed location of iTunes may have been corrupted or compromised and therefore being treated as insecure to run.

Simply uninstalling, rebooting, and re-installing it may solve your issue.

Note: be careful of any possible loss of libraries/configuration in iTunes (possibly try to back them up)."

"You may want to investigate Group Policy, it can block image execution

http://support.microsoft.com/kb/278839

This issue may occur if there is a Group Policy object (GPO) that restricts what programs you can run. Programs can be restricted if either of the following policies in the domain organizational unit group policy or a local computer group policy have been applied:

Do not run specified Windows applications.
Run only the allowed Windows applications.

If you are an administrator, you can verify the policies that are enabled. To do this, click User Configuration, click Administrative Templates, and then click System.

If you're running a home edition of Windows 7 and don't have the group policy console, it appears that the settings map to:

HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun
HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun

http://technet.microsoft.com/en-us/library/cc960900.aspx"