Business article search

How do I use the Program Component Update (PCU) to Upgrade ESET Endpoint products to the latest program version (5.x)


  • Configure ESET Remote Administrator to distribute Program Component Updates (PCUs) to client workstations
  • Upgrade large numbers of client workstations in an enterprise setting

Alternative methods to upgrade client workstations:


A new version has been released

Version 6 of ESET Remote Administrator (ERA) and ESET business products were released in North America December 11th, 2014, and globally February 25th, 2015. This article applies to version 5.x and earlier ESET business products. For information about what's new in the latest version and how to upgrade, see the following article:

To upgrade ESET Endpoint Security or ESET Endpoint Antivirus to the latest version using the PCU (Program Component Update) follow these steps:


PCU (.nup) files are not available on ESET download servers. Please download and distribute them via your internal Mirror server.

Before downloading, have your ESET-issued Username and Password ready; reference your confirmation email for this information. If you forgot your Username or Password, visit our Lost License page.

  1. Download the appropriate .nup files and the corresponding update.ver.txt file for ESET Endpoint Security/ESET Endpoint Antivirus according to your language and bit architecture:
Contents for
file in a
local Mirror
Bulgarian (BGR) 5.0.2271.1 eea_nt32_bgr.nup ees_nt32_bgr.nup eea_nt64_bgr.nup ees_nt64_bgr.nup bgr_update.ver.txt
Chinese - Simplified (CHS) 5.0.2271.1 eea_nt32_chs.nup ees_nt32_chs.nup eea_nt64_chs.nup ees_nt64_chs.nup chs_update.ver.txt
Chinese - Traditional (CHT) 5.0.2271.1 eea_nt32_cht.nup ees_nt32_cht.nup eea_nt64_cht.nup ees_nt64_cht.nup cht_update.ver.txt
Czech (CSY) 5.0.2271.1 eea_nt32_csy.nup ees_nt32_csy.nup eea_nt64_csy.nup ees_nt64_csy.nup csy_update.ver.txt
Dannish (DAN) 5.0.2271.1 eea_nt32_dan.nup ees_nt32_dan.nup eea_nt64_dan.nup ees_nt64_dan.nup dan_update.ver.txt
German (DEU) 5.0.2271.1 eea_nt32_deu.nup ees_nt32_deu.nup eea_nt64_deu.nup ees_nt64_deu.nup deu_update.ver.txt
English (ENU) 5.0.2271.0 eea_nt32_enu.nup ees_nt32_enu.nup eea_nt64_enu.nup ees_nt64_enu.nup enu_update.ver.txt
Spanish - Latin (ESL) 5.0.2271.1 eea_nt32_esl.nup ees_nt32_esl.nup eea_nt64_esl.nup ees_nt64_esl.nup esl_update.ver.txt
Spanish - Traditional (ESN) 5.0.2271.1 eea_nt32_esn.nup ees_nt32_esn.nup eea_nt64_esn.nup ees_nt64_esn.nup esn_update.ver.txt
Estonian (ETI) 5.0.2271.1 eea_nt32_eti.nup ees_nt32_eti.nup eea_nt64_eti.nup ees_nt64_eti.nup eti_update.ver.txt
Finnish (FIN) 5.0.2271.1 eea_nt32_fin.nup ees_nt32_fin.nup eea_nt64_fin.nup ees_nt64_fin.nup fin_update.ver.txt
French - France (FRA) 5.0.2271.1 eea_nt32_fra.nup ees_nt32_fra.nup eea_nt64_fra.nup ees_nt64_fra.nup fra_update.ver.txt
French - Canada (FRC) 5.0.2271.1 eea_nt32_frc.nup ees_nt32_frc.nup eea_nt64_frc.nup ees_nt64_frc.nup frc_update.ver.txt
Croatian (HRV) 5.0.2271.1 eea_nt32_hrv.nup ees_nt32_hrv.nup eea_nt64_hrv.nup ees_nt64_hrv.nup hrv_update.ver.txt
Hungarian (HUN) 5.0.2271.1 eea_nt32_hun.nup ees_nt32_hun.nup eea_nt64_hun.nup ees_nt64_hun.nup hun_update.ver.txt
Italian (ITA) 5.0.2271.1 eea_nt32_ita.nup ees_nt32_ita.nup eea_nt64_ita.nup ees_nt64_ita.nup ita_update.ver.txt
Kazakh (KDI) 5.0.2271.1 eea_nt32_kdi.nup ees_nt32_kdi.nup eea_nt64_kdi.nup ees_nt64_kdi.nup kdi_update.ver.txt
Korean (KOR) 5.0.2271.1 eea_nt32_kor.nup ees_nt32_kor.nup eea_nt64_kor.nup ees_nt64_kor.nup kor_update.ver.txt
Lithuanian (LTH) 5.0.2271.1 eea_nt32_lth.nup ees_nt32_lth.nup eea_nt64_lth.nup ees_nt64_lth.nup lth_update.ver.txt
Dutch (NLD) 5.0.2271.1 eea_nt32_nld.nup ees_nt32_nld.nup eea_nt64_nld.nup ees_nt64_nld.nup nld_update.ver.txt
Norwegian (NOR) 5.0.2271.1 eea_nt32_nor.nup ees_nt32_nor.nup eea_nt64_nor.nup ees_nt64_nor.nup nor_update.ver.txt
Polish (PLK) 5.0.2271.1 eea_nt32_plk.nup ees_nt32_plk.nup eea_nt64_plk.nup ees_nt64_plk.nup plk_update.ver.txt
Portuguease - Brazil (PTB) 5.0.2271.1 eea_nt32_ptb.nup ees_nt32_ptb.nup eea_nt64_ptb.nup ees_nt64_ptb.nup ptb_update.ver.txt
Romanian (ROM) 5.0.2271.1 eea_nt32_rom.nup ees_nt32_rom.nup eea_nt64_rom.nup ees_nt64_rom.nup rom_update.ver.txt
Russian (RUS) 5.0.2271.1 eea_nt32_rus.nup ees_nt32_rus.nup eea_nt64_rus.nup ees_nt64_rus.nup rus_update.ver.txt
Slovak (SKY) 5.0.2271.1 eea_nt32_sky.nup ees_nt32_sky.nup eea_nt64_sky.nup ees_nt64_sky.nup sky_update.ver.txt
Slovenian (SLV) 5.0.2271.1 eea_nt32_slv.nup ees_nt32_slv.nup eea_nt64_slv.nup ees_nt64_slv.nup slv_update.ver.txt
Serbian (SRL) 5.0.2271.1 eea_nt32_srl.nup ees_nt32_srl.nup eea_nt64_srl.nup ees_nt64_srl.nup srl_update.ver.txt
Swedish (SVE) 5.0.2271.1 eea_nt32_sve.nup ees_nt32_sve.nup eea_nt64_sve.nup ees_nt64_sve.nup sve_update.ver.txt
Thai (THA) 5.0.2271.1 eea_nt32_tha.nup ees_nt32_tha.nup eea_nt64_tha.nup ees_nt64_tha.nup tha_update.ver.txt
Turkish (TRK) 5.0.2271.1 eea_nt32_trk.nup ees_nt32_trk.nup eea_nt64_trk.nup ees_nt64_trk.nup trk_update.ver.txt
Ukrainian (UKR) 5.0.2271.1 eea_nt32_ukr.nup ees_nt32_ukr.nup eea_nt64_ukr.nup ees_nt64_ukr.nup ukr_update.ver.txt
  1. Copy the downloaded files into your update Mirror folder.

    Don't know how to configure or manage your Mirror in ESET Remote Administrator (ERA)? How do I install ESET Remote Administrator and configure a Mirror server? (5.x)

    NOTE: Configure a Mirror server in non-ERA products

    To configure a Mirror server for use with other ESET server products, such as ESET File Security for Linux/BSD/Solaris or ESET File Security for Windows Server, please read the online Documentation on our website.

    To locate the Mirror folder installed in the default location on a Windows Server, follow the steps below:
    1. Make sure that Hidden Files and Folders are visible. Click Start Control Panel Folder Options, click the View tab and select Show hidden files, folders and drives and then click OK.

Figure 1-1
Click the image to view larger in new window

    1. Navigate to the appropriate directory below depending on your operating system:
      • Windows Server 2008 and later: C:\ProgramData\ESET\ESET Remote Administrator\Server\mirror
      • Windows Server 2003: C:\Documents and Settings\All Users\Application Data\ESET\ESET\Remote Administrator \Server\mirror
  1. Locate the file update.ver in your mirror folder and open it using a text editor such as Notepad.
  2. Copy/paste the contents of the language-specific update.ver.txt file that you downloaded in step one onto the end of the existing file and then save and close the file.

Figure 1-2
Click the image to view larger in new window

NOTE: Disable server Mirror update

Disable the update of server Mirror as long as all endpoint clients are updated, otherwise the modified update.ver file will be rewritten, thus loosing manual changes carried out in step no. 4.

1. Open the ESET Remote Administrator Console.
2. Click Tools →  Server options and click the Updates tab. 
3. Deselect Create update mirror and click Ok.
  1. If your workstations are not configured to update from your internal Mirror, use Policy editor to configure client workstations to update using the internal update Mirror.

    For instructions, see the following ESET Knowledgebase article: How do I configure ESET client workstations to access the Mirror server in ESET Remote Administrator? (5.x).


Upgrades using the PCU cannot be performed if the virus signature database is out of date. Please ensure that all client workstations are updated to the most recent version of the virus signature database, or are using a version of the virus signature database later than version 8000 before upgrading.

Client workstation(s) will be prompted to upgrade ESET Endpoint Antivirus or ESET Endpoint Security to the latest version automatically the next time that they check into to the ESET Remote Administrator server and download updates.

Figure 1-3
Click the image to view larger in new window

If you are still unable to resolve your issue, please email ESET Technical Support.

Was this information helpful?