Rutee4Life
Welcome to the forum.
You were trying to install version ???? of Spybot that you downloaded from ???? into your ???? computer, which is using ???? operating system. Probably too many unknowns to get a really useful answer.
If you Google the exact error you posted you will get quite a number of hits, and you will see it applies to installing different software, and has many suggested remedies.
The best advice I can offer on the information provided is to:-
Run chkdsk/F on your hard drive - it may want you to allow it to run at bootup and if so say Yes.
Clean out your browser caches and temporary files.
Defragment your Hard drive, or at least the partition the operating system is on.
Important - download another (new) copy of the current version of Spybot from one of the sites at
http://www.spybot.info/en/mirrors/index.html
During the installation take note of the options offered. I recommend not activating either SDHelper or Teatimer until later when the program is running properly. Also do NOT opt to download the updates during the installation. When the installation has completed and you are able to start Spybot without error, use the Search for Updates in the program to get the latest updates. You can then immunise. I would suggest you then do a full scan, allow Spybot to try to fix any items it finds that are shown in red (fixing items shown in green is optional because these are just usage records).
When it is all working without problems, put Spybot into Advanced mode, then goto Tools->Resident and tick Resident SDHelper if you use Internet Explorer, and Teatimer if you want to use it.
If you still have problems, please fill in the ???? gaps when you post back