How To Fix ESET Error Code Win 1601

 ESET Error Code Win 1601

If the ESET error code Win 1601 occurs when you try to install the ESET program, perform the following troubleshooting steps.

Restarting the Windows Installer service

Step 1

Enter ‘services.msc’ in the Windows search bar.

Step 2

Search for the Windows Installer service and double-click it.

Step 3

  • Navigate to the General tab, click the Start button, and select the Apply option followed by the OK option.
  • Check if the issue has been resolved by installing the ESET program on your Windows computer.

Re-register The Windows Installer Service

Windows XP

Method 1 - Re-registering Windows Installer Service

Step 1

  • On your Windows XP computer, click the Start icon and select the Run option.
  • Type ‘msiexec /unreg’ in the Open field and click OK.

Step 2

  • Relaunch the Run dialog box.
  • Type ‘msiexec /regserver’ without the quotes and click the OK button.
  • Install the ESET program and check if the issue has been resolved.

Method 2 - Reregister Using MS-DOS

Step 1

  • On the keyboard, press the Win and R keys at the same time.
  • Enter ‘cmd’ without including the single quotes.

Step 2

  • Enter the following command line in the MS-DOS dialog window:
  • msiexec /unregister
  • msiexec /regserver
  • Try to install the ESET program again.

Windows Vista

Step 1

  • Type ‘%windir%\system32\msiexec /unregserver’ in the Windows search bar and press the Enter key.

Step 2

  • Return to the Windows search bar and enter ‘%windir%\system32\msiexec /regserver’ without the quotes.

Step 3

  • When prompted, type for admin password correctly and click Allow.
  • This will re-register the Windows Installer service.

If the ESET error code Win 1601 still persists, you can contact our technical experts for a premium service.

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