RA finally stopped supporting EVRSI with RSLogix 5000 v20, but I think that RSLogix 500 has retained the ability to use the old activation method. Rslogix 5000 V20 Factorytalk Activation Crack Download
The other computers are not older, save the laptop, they just have had the installation done a while ago (probably a few years ago) (I have not been here 3 months and this computer was a mechanical engineers before me so RSLogix was not installed) we all use thumb drive for activation including the laptop, since there is only three of us that manage the PLCs, HMIs, and robots it is a suitable method (for now) Also, I am using the same install DVD that the other computers used so that isn't an issue. Yes it is EVMOVECF(W) method I posted the names of the three files in the activation folder in a prior post.
The registry cleaning was after uninstalls and prior to a reinstallation. Your first step should be to determine which activation method your older computers are actually using. At this point you've done a bunch of uninstall/reinstall and registry cleaning, so you may have done more harm than good.