HTML5 is not working in my Visual studio 2010

Question

I have download and install the extension from Web Standards Update for Microsoft Visual Studio 2010 SP1 . But It is not working. Please help me to solve these error. My source code is:

Gurjeet Singh · Answer

I didn't install SP1. Okay i will install it.

Vulpes · Answer

Did you install SP1 first? http://www.microsoft.com/download/en/details.aspx?id=23691

Gurjeet Singh · Answer

Suthish sir I have install Web Standards Update for Microsoft Visual Studio 2010 SP1 . and follow the step to install it. But still it's not working. Is this problem with my visual studio 2010 or i should install any thing else. Even I have reinstalled it 2 or 3 times.

Jiteendra Sampathirao · Answer

Nice article suthish...

Suthish Nair · Answer

Already have an article: HTML5 in Visual Studio 2010

Jiteendra Sampathirao · Answer

Open VS 2010 IDE Goto Tools-->Click on Options-->Text Editor(expand it)-->HTML(Expand it)-->you can see validation---> Click On validation --> In the target DropDownlist you can see HTML5. -->Select HTML5 and Click OK. Definitely your problem will be solved... Refer this LInk Hope this help you......