The reason there is no Fix, is that the aswMBR.txt file isn't showing an MBR rootkit, it is very clear in the report if you have a rootkit. Whilst this is only reporting an unknown MBR. This can happen if you have a manufacturers PC, like Dell or perhaps HP, which may have a unique MBR to cater for their recovery partition.
So do you have a Dell, HP system, etc. ?
I can't help with the OTS log it isn't something that I'm familiar with.