A few things you can try
- Check your available free disk space
- Make sure your temporary 'temp' folder isn't mapped to a network drive
- Do a ram test. http://www.memtest.org/ is a simple way to do it. I had a similar issue when a single bit on a stick of ram was faulty. It was quite high up on the ram table (if that makes sense) as day to day use didn't hit it but a memory intensive job like unpacking and validating the SuperDAT would. The faulty bit of ram would generate a different checksum and the validation would fail.
Sujit Jha wrote:
I haven't created this package..it was downloaded from McAfee Security product download location.
i had downloaded this again but it doesn't worked for me.
Since you have downloaded again, I would suggest checking if %TMP% directory exists. As Tristan stated, the %TMP% folder should be local.
Additionally, I would check the integrity of the downloaded file using SigCheck.exe. (from a cmd prompt)
SigCheck.exe -accepteula -a -h -q "SDATxxxx.exe" (use whatever filename you have, within the quotes)
If the file presents as unsigned or invalid, the file has been altered either during the download or on disk somehow.
If the file is Signed, then the RAM issue mentioned by Tristan might be a good place to start. Again, make sure %TMP% (or %TEMP%) exists. Additionally, you might consider clearing the temporary space, ensuring that it is empty.
Alternatively, attempt to extract the sdat manually to the directory you have downloaded (from a cmd prompt):
Hopefully this is helpful.