Hey there, I'd really like to use Eset Smart Security, but when I first tried installing it I had a similar problem as described in this thread: http://www.wilderssecurity.com/showthread.php?t=190881 Not only am I simply shocked that Eset did not adress this issue so far and provided absolutely *no* warning on install (I mean hey, the installation of the software basically breaks your computer!), for some reason now my registry got broken and it is now impossible to reinstall Eset Smart Security. Here's what I did: my computer wouldn't start up anymore after installing Eset Smart Security and rebooting, it always hung at the part where it was accessing the TPM chip. So I did the logical thing and used system restore to get the system state from before the installation back. Windows started up normally then. However, for some reason Eset Smart Security was still showing up as installed (although it didn't work anymore), so I uninstalled it and restarted my computer to make a new attempt on installing it. However from this point on it has been completely impossible to reinstall the program. The installation goes all smooth till the very end where it says something about installing drivers, where it suddenly rolls back everything and cancels the installation. Here's what I tried. First I removed any remaining Eset directories/files from my hard disk. Afterwards I went into the device manager to remove any remaining eset drivers there, however I did not find any here (devmgr_show_nonpresent_devices was set to 1, so yes I saw absolutely *any* devices you can ever see in the device manager). Then I went through the whole registry and deleted any reference of "eset". I noticed here that two registry keys can not under any circumstances be deleted, not even from Safe Mode: HKLM\System\ControlSet001\Enum\Root\ESET_EPFWNDISMP and HKLM\System\ControlSet001\Enum\Root\LEGACY_EKRN. Any help on deleting those keys, please? Windows just shows an error message saying the keys could not be deleted, every single time that I try deleting them. From the keys that are inside, they contain a Miniport driver for the Eset firewall, so I'm pretty sure that my problem with reinstalling the software originates from here. I find it very sad that the Eset software is unable to even properly remove itself from my system. I'd still find it more sad to not being able to use it at all, so any advnice would be greatly appreciated.