Do NOT install Windows Vista SP2 if your using ESET Smart Security or Antivirus 4.0

Service Pack 2 for Microsoft Windows Vista and Windows Server 2008 conflicts with version 4.0 of ESET Smart Security and ESET NOD32 Antivirus. If you are running version 4.0 of either ESET Smart Security or ESET NOD32 Antivirus and have installed the latest update for Microsoft Windows Vista and Windows Server 2008, which includes Service Pack 2, you may be experiencing issues with your ESET security product.

An incompatibily between Service Pack 2 and the 4.0 versions of ESET Smart Security and ESET NOD32 Antivirus prevents the proper functioning of real-time file-system protection. The ESET icon next to the system clock will turn red, notifying you that maximum protection is not ensured. It may notify you that your ESET security product needs to be reinstalled. Doing so will not rectify the incompatibility. An updated build for version 4.0 ESET security products is currently in development and will be released as soon as possible. To resolve the issue temporarily, follow the steps below to uninstall 4.0 and install the 3.0 version of your ESET security product :

1. Uninstall your ESET security product. Click Start → All Programs → ESET [product name] → Uninstall. After you uninstall, you will need to restart your computer.
2. After restarting, click Start → My Computer. Navigate to and delete the following folders:
   C:\Program Files\ESET
   C:\Documents and Settings\All Users\Application Data\ESET
   C:\Documents and Settings\%USER%\Application Data\ESET
   
   Vista Users must delete the following folders:
   C:\Program Files\ESET
   C:\Program Data\ESET
3. Download ESET Smart Security 3.0 or ESET NOD32 Antivirus 3.0 onto your Desktop using the links below for Windows NT/2000/XP/2003/Vista.
   
   32-bit:
   ESET Smart Security 3.0: http://download.eset.com/download/wi...s_nt32_enu.msi
   ESET NOD32 Antivirus 3.0: http://download.eset.com/download/win/v3eav/eav_nt32_enu.msi
   
   64-bit:
   ESET Smart Security 3.0: http://download.eset.com/download/wi...s_nt64_enu.msi
   ESET NOD32 Antivirus 3.0: http://download.eset.com/download/win/v3eav/eav_nt64_enu.msi
   
   
4. Once the download has completed, you may be prompted to click Run and begin the installation process. Click Run if you are prompted. If not, navigate to your Desktop or wherever you saved the .msi file. Double-click on it.

Once you have installed version 3.0 of your ESET security product, real-time file-system protection will be enabled and the ESET icon next to the system clock will turn green again.

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