Re-installing Avast V7

Hi
I’ve had to uninstall Avast (with ASWCLEAR) after the automatic program update failed completely - the updated version was sending my computer in a loop.
I’ve tried to re-install a freshly downloaded version (free version from download.com) but fail - I get the following log (attached).
Can anyone help? I’ve already wasted 3 hours :frowning:
Thanks

My first guess (according to the error code) would be a problem with the hard disk… I suggest to run a disk check (including the surface scan).