Share your experience!
I have Xperia P with ICS with latest update 6.1.1.B.1.54. I am failed to connect to my laptop having windows 7 32 bit. MTP USB Device Driver problem occurs. I have updated my Windows but PCC and Windows can't connect my Xperia P.
Please help.
How do you connect your phone to PC, turnned on or off?
Install pc companion,and connect after.I also have windows 7,but on 64 bits but it works super fine.
Phone is turned on..
I have done same as u said..
And?Still problems?
Yes!!! I have still problem.. 
turn off your phone, press and hold volume down while connecting the USB cable to the phone and do not release until drivers are downloaded.
You can try it using the "hard" way but first of all let me clear out first that i'm not responsible for any damage caused to your Phone or your Windows PC. Proceed with your own risk!
Also i use the x64 version of Windows 7. (Mind that i already have Service Pack 1 installed).
Now, if you wanna try it out follow the instructions carefully.
These are the files that my Phone is using.
If all else fails restore your PC using the Restore Point you created earlier even if it doesn't show any errors. If you don't it might cause problems in the future.
You might get a blue screen of death during the paste procedure, just restart and keep going on.