How To Protect Your Computer ?

There could be 2 reasons for this problem.
1. Either you have got a fake software
2. Or you have got a key for a different download of the same software.

You can always contact them through their live Chat facility in their website.

Note: If you have licensed copy of Windows OS then you can download Windows Security Essentials. It has
1. Anti-Virus,
2. Anti-Spyware.
3. Firewall,
4. Real time protection
5. Automatic update of virus definition and detection engine
6. Total solution for online and other security threats.
And It comes absolutely free. When you are getting such a great product for free why to try unknown software?

use these steps:
1- reinstall your operating system (OS).
2- after the OS installed , download and install a powerful anti virus(with latest updates) (like NOD32 ANTI Virus or Kaspersky etc)

3- start a full scan (in anti virus options).
4- reinstall your OS again and enjoy fast speed.
NOTE:always remember to use an updated anti virus on your Laptop.
and if your laptop worked slow again use this way:
1- start "RUN" from start menu.(if you are using windows 7 go to accessories)
2- enter "msconfig".
3- go to startup tab.
4- disable some installed software (like yahoo messenger or ID Manager etc) in start up but be careful not to disable windows applications.

Its a virus.
You need to run these 3 essential programs to remove all the spyware on your computer.

If you do not have an internet security suit and only an anti virus
1. Run Malwarebytes Anti-Malware
2. Run a complete scan with free curing utility Dr.Web CureIt!
3. Run the anti spyware removal programs spybot or Superantispyware
Use Mozilla firefox or the google chrome browser for browsing unsafe websites

Install ThreatFire.ThreatFire, features innovative real-time behavioral protection technology that provides powerful standalone protection or the perfect complement to traditional signature-based antivirus programs offers unsurpassed protection against both known and unknown zero-day viruses, worms, trojans, rootkits, buffer overflows, spyware, adware and other malware.
Run an online virus scan like Trend Micro HouseCall,F-Secure Online Virus Scanner etc etc
update your software by running
Secunia Online Software Inspector
Install a good antivirus in your computer.
Keep your antivirus updated. If automatic updates are available, configure your antivirus to use them.
Keep your permanent antivirus protection enabled at all times.