Not sure if you understood it... You can reset the trial, but the trial itself will be canceled the following day.... So it's kind of 1 day thing.
If this doesn't work for you, it's due to a problem specific to your system. An alternative solution has been suggested here.
After registering on the current ESET HOME website, you can obtain a trial version directly. After creating an account with a temporary email address, enter the activation code into your computer's expired ESET product. You do not need to use this script to reset the trial period if your country allows the legal use of temporary email addresses.
" del-eset.bat " @echo off cls cd C:\ del /f "C:\ProgramData\ESET\ESET Security\License\license.lf" REG IMPORT "%~dp0reset-eset.reg" echo Reset Eset Trial done pause exit " reset-eset.reg " Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\SOFTWARE\ESET\ESET Security\CurrentVersion\Config\plugins\01000006\settings\Ekrn\Check] "CfgSeqNumberEsetAccGlobal"=- "DNSTimerSec"=- [HKEY_LOCAL_MACHINE\SOFTWARE\ESET\ESET Security\CurrentVersion\Config\plugins\01000006\settings\Ekrn\Ecp] "SeatID"=- "ComputerName"=- "Token"=- [HKEY_LOCAL_MACHINE\SOFTWARE\ESET\ESET Security\CurrentVersion\Config\plugins\01000006\settings\Ekrn\Info] "LastHwf"=- "ActivationState"=- "ActivationType"=- "LastActivationDate"=- [HKEY_LOCAL_MACHINE\SOFTWARE\ESET\ESET Security\CurrentVersion\Config\plugins\01000200\settings\stProtocolFiltering\stAppSsl] "uRootCreateTime"=- [HKEY_LOCAL_MACHINE\SOFTWARE\ESET\ESET Security\CurrentVersion\Plugins\01000400\ConfigBackup] "Username"=- "Password"=- "LegacyUsername"=- "LegacyPassword"=- [HKEY_LOCAL_MACHINE\SOFTWARE\ESET\ESET Security\CurrentVersion\Config\plugins\01000400\settings] "Password"=- "Username"=- [HKEY_LOCAL_MACHINE\SOFTWARE\ESET\ESET Security\CurrentVersion\Config\plugins\01000600\settings\DistPackage\AppSettings] "ActOptions"=- [HKEY_LOCAL_MACHINE\SOFTWARE\ESET\ESET Security\CurrentVersion\Config\plugins\01000006\settings\Ekrn\Info\LastHwInfo] "ComputerName"=- "Version"=- [HKEY_LOCAL_MACHINE\SOFTWARE\ESET\ESET Security\CurrentVersion\Info] "EditionName"=- "FullProductName"=- "InstalledByERA"=- "ActiveFeatures"=- "UniqueId"=- "WebActivationState"=- "WebSeatId"=- "WebClientComputerName"=- "WebLicensePublicId"=- "LastActivationResult"=- " copy paste new .txt file and save the .bat / .reg => run administrator"