On a Windows 7 Enterprise 64-bit laptop joined to a corporate domain, the Windows Firewall is disabled by a global policy.

Is there any way to enable the Windows Firewall in this scenario?

The gpedit.msc setting Windows Firewall: Protect all network connections is inaccessible.

EDIT: It appears that changing HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\gpsvc\Start value to 4 will disable the GPO and allow you to start the firewall and stop the bots from pushing cr*p to your computer... will check on Monday and if it works I'll confirm here in case someone else in my situation wonders upon this question...

EDIT: It's probably better if I write a mock windows service not doing anything and name it according to what is expected to be on my box and than crete mock McCrappy executable and mock McCrappy folder structure and remove all the actual stuff... That would take a little time but would most certainly make my box completely stealthy...