Sometimes you get a error called - NSIS error. I got this when installing my graphics cards driver. But, I searched the internet for it and got some good results on eHow. So, now I am describing and solving it.

Step 1: NSIS Error

Why do I get NSIS Error?

The possible cause is : the downloaded file is either incomplete or modified from the original file.

Now you may ask that-

What does this message mean?

The massage means that- The installer has failed a self-check. This means that for some actions, the installer file has been altered from its original form. If the install were to continue, the software install would not be complete and will be broken. To prevent further problems, the installer refused to continue.

Step 2: How Do I Fix the Problem?

Here is some options to solve it if you got the .exe file from the internet -

1.Clear your browser's cache.

2.Rename the installer so it is a simple one-word name with no special characters (without removing the .exe suffix)

Example: install.exe

3.Download the installer using another computer and copy it to the original computer.

4. Scan the hard drive using scandisk, chkdsk, or any other hard drive repair tool.

5. Run a full scan on your antivirus.

6. Try updating your antivirus software (if installed).

7.Wait for Windows Update to finish updating drivers.

If the problem is not solved yet then go to the next step.

If you are receiving this problem from an installer located on a disc or other media then -

Also follow the next step.

Step 3: Last and the Best Option to Solve the Error

As a last resort, the installer can be executed even though it's corrupted. To bypass the corruption test, pass /NCRC on the command line. To do so -

Go to start and write CMD than hit enter. A black window will be opened. Now go to the folder where the .exe file is. If it is in a disc or a pen drive then copy it to your hard disk. Now drag the file to the black window or the CMD window and you will see that the address of the .exe file has been copied to the cmd window. Now on the CMD window- press space and write /NCRC and hit enter. You will see that the installation window has been opened. Then you can install the software.

If the problem persists. then you will need to contact either the developers of the software you're attempting to download or your personal computer support channels.