NSIS what is it

I did a windows update and I can’t down load 1.5.3 or use 1.5.1 Just keeps saying NSIS_Error any help would be great.

If you google NSIS error you will get information about what it is and, possibly, how to get around it.

Thank you Paullarson

I tried that and I get more windows apps that want money (funny that)

Cheers

I tried googling NSIS before I suggested it to see if I got meaningful results and I did. Sorry you didn’t. I got the following info from Copilot. Maybe helpful. I’d try installing from the console window it suggests.

Fixing NSIS Error on Windows

123

The NSIS (Nullsoft Scriptable Install System) error occurs when an installer fails its integrity check, indicating that the installation files might be corrupted or incomplete. This error can prevent you from installing software on your Windows system.

Example

Error launching installer

Installer integrity check has failed. Common causes include incomplete download and damaged media

Common Causes and Solutions

1. Install the Program from Command Prompt

Running the installer through Command Prompt can bypass the corruption test and directly install the program.

cmd /c “path\to\installer.exe /NCRC”

2. Rename or Relocate the Installation File

Sometimes, folder issues or special characters in the filename can cause the NSIS error. Rename the file to a simple name without special characters or move it to a different directory.

# Rename example

installer.exe → setup.exe

# Move example

C:\Downloads\installer.exe → D:\installer.exe

3. Redownload the Program

If the installation file is corrupted or incomplete, redownload it from a reliable source.

4. Remove Virus and Malware

Viruses or malware can interfere with installers. Use antivirus software to scan and remove any threats**1**.

5. Update Your Windows

Ensure your Windows is up-to-date to avoid compatibility issues with the installer**2**.

6. Turn Off Your Windows Firewall

Windows Firewall might block the installer. Temporarily disable it and try running the installer again**3**.

# Disable Firewall example

Control Panel → System and Security → Windows Defender Firewall → Turn off Windows Defender Firewall

By following these steps, you can resolve the NSIS error and successfully install your software.

Learn more:

1 -partitionwizard.com2 -makeuseof.com3 -thewindowsclub.com

2 Likes

Thank you so much, I’m not the best on windows but I will follow your results

Thank you

:grinning_face:

@Notallthere66 Did the advice from @paullarson solve your problem?