Hi.
I currently faced this problem. I bought ESET Internet Security 2019 - 2 Years, 3 PCs ( Product Key Card ) from greatamericancomputer.com 1 year ago. Then i activated ESET on cople computers and all worked perfectly.
Untill now, i put new pc rig and tried to install ESET with same licence and faced ACT.33 error. I looked for internet for all possible solutions but no help.
Im now starting to think that this all coming up because of some weird ESET rules about licences.
Why it does not work if it did before?? Did i have to revoke licence from old win10 before activating on new?