Does anyone know how can I install software on my PC without administrator permission? I know that I can change permission of some KEY in the Registry, but I don't know exactly which ones. I'm using Windows 7 64-bit.
Thanks in advance.
As long as the software installer doesn't try to write to protected folders or registry keys, there is usually no admin permission required. Many software installers give you the choice of where/how to install, but some don't and if that is the case, you're pretty much out of luck. Some software doesn't even require any sort of "installation", you can just place the executable files anywhere in your user-writable folders.
If you're not an administrator, then no, you can not change permissions on any of the protected locations.