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Home » Resolving NSIS Installer Error: A Step-by-Step Guide – Windows 10 & 11

Resolving NSIS Installer Error: A Step-by-Step Guide – Windows 10 & 11


NSIS, short for Nullsoft Scriptable Install System, is an open-source tool used to create Windows installer packages. NSIS errors occur on Windows 10 or Windows 11 when attempting to install corrupted packages generated by the NSIS application.

In this guide, we will provide instructions on resolving the NSIS error on Windows 10/11.

Method 1: Fix using the Outbyte Repair Tool

Outbyte Repair is a powerful software tool designed to help users address various system issues and errors on their Windows computers. When it comes to fixing NSIS errors, Outbyte Repair offers an effective solution. NSIS errors often arise during the installation process of software programs and can be quite frustrating.

With Outbyte Repair, users can quickly and easily tackle NSIS errors without requiring advanced technical knowledge. The tool conducts a thorough system scan, identifying any underlying issues that may be causing the NSIS error. It then generates a comprehensive report detailing the detected problems.

Windows is made with huge number of dll files, exe files, sys files, various types of services, databases, etc so, it is not possible to keep monitoring all the files always. A brilliant PC Optimizer tool repairs damages, fix errors, update windows and drivers, and eliminate various types of errors silently.

Outbyte PC Repair Tool does all the above task easily and provides you an errorfree and smooth Windows environment to work so that you can focus on your business only.

3 Steps to Fix this Error
Step 1. Download Outbyte PC Repair Tool [File Size: 16.4 MB]
Step 2. SCAN your Windows PC
Step 3. Click Fix button to Repair Error

Method 2: Re-download the package

This approach involves re-downloading the affected software package from the official website and attempting to install it again. This is a recommended solution for dealing with the NSIS error on your Windows computer.

Method 3: Ensure your Windows OS is up to date

If you haven’t updated your Windows operating system for an extended period, you may encounter various types of errors, including the NSIS Installer Error. It is crucial to keep your OS and drivers updated.

To simplify the driver update process, consider using a reliable driver updater tool like DriverEasy. Download the DriverEasy Driver Repair Tool and update all the drivers on your computer.

Method 4: Temporarily disable security protection.

If you trust the installer and are confident it does not contain any viruses, you can temporarily disable your security protection and attempt to run the installer. Keep in mind that security protection software may block installers that appear suspicious to ensure the protection of your PC from malicious software.

Step 1: Right click on the security program in the notification area.
Step 2: Select “Pause protection“.


Method 5: Run a disk checker tool to identify and repair hard drive errors.

If there are any bad sectors on your hard drive, you may encounter different types of errors, including the NSIS Installer Error. Follow these guidelines to run a disk checker tool on your computer.

Step 1: Open This PC and right-click on the driver letter, select properties.


Step 2: Select Tools tab and then click on the check button to identify and repair drive error.


Step 3: Click on the link “Scan drive” to start scanning process.


Step 4: Error checking tool will start scanning of drive.


Method 6: Run the program in compatibility mode.

In certain cases, specific applications may not function correctly based on your PC’s configuration. To address this, you can change the compatibility mode for the installer package.

Step 1: Right-click on the faulty software causing the NSIS error and select Properties.


Step 2: In the Properties window, navigate to the Compatibility tab. Select the checkbox that says ‘Run this program in compatibility mode for’ and then choose your desired operating system.


Pro tip: If the installer is quite old, select the corresponding OS version, such as Windows XP, Vista, or Windows 7. For relatively newer installers, select Windows 8.
Step 3: Click Apply, then OK, and reboot your computer.

Method 7: Run DISM, chkdsk, and sfc commands.

These three sets of commands are effective in repairing the Windows file system. Run these commands to address any missing, corrupted, or infected system files.

Step 1: Open the Command Prompt as an administrator.

open command prompt as administrator in Windows 8, 10 & 11

Step 2: Execute the following commands sequentially:
DISM.exe /Online /Cleanup-image /Restorehealth
chkdsk C:
sfc /scannow


To fix the NSIS Installer Error on Windows 10 or Windows 11, download the faulty apps again, turn off security program, repair hard drive problems or follow the steps provided accurately in this article.