Antispyware's Blocking Drama

Antispywares and Antivirus softwares are said to slow down the computer performance and web browsing. But they also block the browsing totally sometimes: whenever I typed an URL in the address box the Antispyware software installed in the computer informed through a dialogue box with buttons of ALLOW and BLOCK, and a check box that gave option not to show that dialogue box again. If I clicked any of these buttons, everything was frozen leaving only the option of turning off of the computer! A total block in the web browsing was the result. Surprisingly there was a single solution to remove this block: ‘ticking in the check box’ – not to show the dialogue box once again! That’s all. The block was removed!