Thought I would pass along a problem I ran into today trying to install ESS 188.8.131.52 on a Windows 7 (64-bit) platform. It looks like it may be a bug in the install process. It is completely reproducible on my laptop; it may not affect everyone. After specifying installation options for a custom install, the install started, the progress bar updated up through the point that the install was complete. However, the install Window remain displayed and never went away. There were several installer processes still running. Clicking 'Cancel' on the installer window did nothing (the window didn't close). The install was locked up. On shutdown, Windows complained that a process wasn't responding. This was completely repeatable with the same option choices (custom install, install to default directory, "I don't use a proxy server", default automatic update parameters, "I agree to participate in ESET live grid", enable detection of potentially unwanted apps, use interative mode) I found that the install would behave normally if I changed the following options: . Uncheck participate in Live Grid . Disable detection of potentially unwanted apps (I could manually enable these features after the install completed) So, I don't know if I'm the only one to run into this, but thought it best to post my experience in case someone else hits the same problem.