Hi, I've got four current NOD32 licenses, one of them expires this month and the other three in about 2 months, so it was time to think about renewal. I have 3 computers, I'm the only user. One is a dual-boot Win7 machine 32-bit on one drive, 64-bit on the other. The second computer is also Win7, but 32-bit only, and the third is an XP/SP2 machine. I've been using a single license on the dual-boot machine (one for the 32-bit side and one for the 64-bit side) the other two machines have their own licenses, and the fourth license is currently not being used. I ordered a 3-User version from Amazon, planning to use one license on each of the three boxes, and using one of the licenses twice on the dual-boot machine since when I asked here about two years ago, that was said to be legitimate. A couple of weeks back, I ran across the upgrade to NOD32, v5.0.94 and downloaded that. I installed it on the 64-bit side of the dual-boot machine without any trouble and it's worked fine for me, so in preparation for the renewal, I thought that I would just download the update to v5 and install it across all four platforms, then when the new licenses came from Amazon I could just change the username and password, let things update, and I'd be all set. I did that a year ago and it worked fine. So, today I downloaded the installer application for what turned out to be 5.0.95 and installed it on the 32-bit side of the dual-boot machine. It's just a test machine so it can be easily restored if need be. Again, the install went as expected and the 32-bit side came up and ran, did the normal boot scans and those worked just fine, everything looked good. I used the username and password that were on the dual-boot machine, the same as was already there on the 64-bit side of the same machine, since that's the one that machine that was going to need the shared license. I wen't back to the 64-bit side of the same maching, 5.0.94 and it was still working, but there was a link to "Check" or "Check for Updates", at least that's what it seemed to be. I clicked it and it went to the ESET site and picked up the 5.0.95 version and proceeded to install that, really just what I expected to happen, except at the end it uninstalled itself, or at least most of itself, on the 64-bit side. There are still a few files there. The 32-bit side is still working fine under 5.0.95, but on the 64-bit side I get no tooltray icons, no boot scans, no ESET screen, no way to start the program at all in the Start Menu on the 64-bit side at all. Is it not allowed to use the same copy on a dual-boot machine anymore or have I done something I shouldn't? Any help anyone might be able to give would be greatly appreciated. I can live with only the 3 licenses if need be, but I need to download or run Windows Update through that system and would need to buy another license as it stands. Thank you!