You have a program on your computer that's interfering with Minecraft. First, uninstall Fast Hide IP through Programs and Features in Control Panel.
Next, download LSP-Fix: http://www.cexx.org/LSPFix.exe
Open up LSP-Fix, tick the 'I know what I'm doing checkbox', click only FastIPLib.dll on the left, then the '>>' icon in the middle. FastIPLib.dll should move to the right. Finally, click Finish.
Next, download LSP-Fix: http://www.cexx.org/LSPFix.exe
Open up LSP-Fix, tick the 'I know what I'm doing checkbox', click only FastIPLib.dll on the left, then the '>>' icon in the middle. FastIPLib.dll should move to the right. Finally, click Finish.
Stu