I have a Laptop Pentium dual core 2.16 GHz with 2 GB Ram while opening home folder or any other folder in that matter window becomes unresponsive.
I tried to reduce nice values of some processes in system monitor still problem exists. Due to this I can't open any file in any folder.

umount -f gvfs-fuse-daemonas root and then reboot.lsanddfwould also hang on the home folder, with the latter giving the error shown here (seems common to more than Ubuntu). – Matthew Read Dec 1 '12 at 21:47