Many times, the downloaded setup file for an app or a program is damaged, incomplete, or it may not meet the system requirements, and it shows an error message, “NSIS error – Error launching installer“.
The error means that the installer failed the self-check due to some changes been done from what it was originally. However, if the installation still goes on, the final installed software will be damaged. Therefore, it shows the error to stop the installation process to continue.
However, this error can be fixed. Let’s see how.
Method 1: How To Fix the NSIS error “Error launching installer” in Windows 10 By Renaming the Path
Step 1: Press the Windows key + E to launch the File Explorer.
Step 2: In the File Explorer, go to the location where the setup file is located (for which you are seeing the error).
For instance, here we tried to open the VLC Media Player, but the error was showing up. So, we navigated to the original location of its setup file/installer in the File Explorer, in the Downloads folder to change the location of the installer.
Step 3: Now, right-click on the installer, select Copy.
Step 4: Next, paste the copied installer to a new location. We created a New Folder on desktop, named it Media Player, and moved the VLC installer to this new folder.
*Note – Do not use any non-English characters in the Folder name, or the installer may not work properly. For instance, avoid adding characters like #, @, Л, Д, Ж, Й, Г, and so on. Check the example below:
Step 5: The correct folder path for the installer will look like this:
Run the installer now from this new folder and it should work now. If not, try the 2nd method.
Method 2: How To Fix the NSIS error “Error launching installer” in Windows 10 Using Command Prompt
Step 1: Press the Windows key + X together on your keyboard and click on Command Prompt (Admin) in the context menu to open Command Prompt in Admin mode.
Step 2: Execute the below-mentioned path in the Command Prompt in the format as shown:
"Your software folder location\your software name.exe" /NCRC
Step 3: Copy the path address of the new folder where the installer is now located and use it in the format as above. For instance, our command looks like this:
"C:\Users\madhu\OneDrive\Desktop\Media Player\vlc.exe" /NCRC
Now, hit Enter and the installation procedure will start. This should install your software properly.