According to the requirements for LR 11, Windows 7 is not listed at all. Can someone tell me when LR 11 will support Windows 7 and which flavor (32 v 64) for at least the VuGen and Analysis modes?
Windows 7 is supported by LR 11. Be sure to have Windows Data Execution Prevention (DEP) set to at least "Turn on DEP for essential Windows programs and services only."
Also, be sure that you do not have anti-virus/spyware software that may be interfering with LoadRunner. In many cases, adding an exception to the anti-virus software for LoadRunner will resolve those issues.
Also, check your Windows UAC (User Access Controls) settings and your user permissions. From the LR 11 readme:
To run LoadRunner on Windows 7 or Window Server 2008, you must have Administrator privileges and User Account Control (UAC) must be disabled.
Finally I want to address 64 bit support. LR 11 will work on a 64 bit OS. This includes Win 2008 and Win 7 64 bit. The catch is, even if installed on a 64 bit OS - LoadRunner/Vugen will only be able to record 32 bit applications. So, if you install LR on a 64 bit OS - you can gain added benefits such as larger memory recognition for the system - beter head space memory management for certain protocols - but you will only be able to record against a 32 bit app.