Unable to connect my Nexus 7 to a PC I searched a lot over the Internet and tried all the advice I found.

I have installed drivers from the ASUS site and changed C:\Windows\inf\wpdmtp.inf so it now contains

; Nexus 7
%GenericMTP.DeviceDesc%=MTP, USB\MS_COMP_MTP
%GenericMTP.DeviceDesc%=MTP, USB\VID_18D1&amp;PID_4E42&amp;MI_00


both in [Generic.NTx86] and [Generic.NTamd64] sections.

My device is in MTP mode.

Computer sees it in PTP mode.

USB debugging is on.

It was said that I need Windows Media Player 11, but I have Windows 7 so it should be included, although I don't know where to check the version.

Here is what I see in device manager after all failed attempts:
For some reason, MTP and ADB are incompatible.  Try turning USB debugging off, I've never been able to get it to connect right with it on.