Change SharePoint 2013 Site Logo Link to Root Site URL

By default, on clicking the SharePoint 2010 or SharePoint 2013 site logo - It takes us to the root of the current site or sub-site. But you may want to link logo to top level site.Well, to change this behavior you got to change the master page.

Important: Since this is a Master page change, You have to apply the updated master page to all site collections for the changes to take effect!

Set SharePoint 2010 logo link root site:

• Open your Master page in SharePoint Designer 2010, Locate the below line:

<SharePoint:SPLinkButton runat="server" NavigateUrl="~site/" id="onetidProjectPropertyTitleGraphic">

• Replace the ~site value with ~sitecollection .Save and close the master page (approve and publish, if required!) . This changes SharePoint 2010 logo link to root site collection.
  

In SharePoint 2013 - Change site logo link URL:

• Open your SharePoint 2013 site in SharePoint designer 2013, Edit the master page in "Advanced Edit Mode",
• Locate the following code :

<SharePoint:SPSimpleSiteLink CssClass="ms-siteicon-a" runat="server" id="onetidProjectPropertyTitleGraphic" >
<SharePoint:SiteLogoImage CssClass="ms-siteicon-img" name="onetidHeadbnnr0" id="onetidHeadbnnr2" LogoImageUrl="/_layouts/15/images/siteIcon.png?rev=23" runat="server"/>
</SharePoint:SPSimpleSiteLink>

• Replace the control <SharePoint:SPSimpleSiteLink> with <SharePoint:SPLinkButton> and add the "NavigateUrl="~sitecollection/" attribute to it.Here is the modified code:

<SharePoint:SPLinkButton NavigateUrl="~sitecollection/" CssClass="ms-siteicon-a" runat="server" id="onetidProjectPropertyTitleGraphic" >
<SharePoint:SiteLogoImage CssClass="ms-siteicon-img" name="onetidHeadbnnr0" id="onetidHeadbnnr2" LogoImageUrl="/_layouts/15/images/siteIcon.png?rev=23" runat="server"/>
</SharePoint:SPLinkButton >

This changes logo link URL pointing from current site to Root Site!