First indication of trouble - Malwarebytes Anti-Malware Pro would not run on wife's WIN-7 Home Premium - 32 bit Dual Core 2 GHz HP laptop (29 AUG 2013). It starts but after 1 or 2 seconds indicated, it locks up. It does not matter which scan; Flash, Quick or Full. I shut it down and upon returning home Sept 2nd., I downloaded Malwarebytes Anti-Rootkit Beta, installed, updated, and started running it. And its still running. I know its working since I have task manager and resource monitor running showing CPU, Memory, Disk, Network, and Overview of the monitored mbar.exe activities. Unlike the Malwarebytes Anti-Rootkit Beta which I ran on both my 64 bit WIN-7 Home Premium AMD 3.5 GHz Quad core and 250 GB SSD machines (less than 10 minutes) there is no indication of what is being scanned on the 32 bit laptop. I have NO idea if I have another 5 minutes or another 5 days before the scan is finished and the clean up can start. AB9M - Gary