How to change image library location in SharePoint Blog site?

First of all it depends on which method you are using to publish blog?

Is it using MS Word?

Or you are directly creating posts on blog site?

If you are using MS Word

If you are using MS Word to publish post to SharePoint Blog site then it will automatically publish images to "Photos" picture library.

Below are the steps to change the default location

• Open MS Word > New > Blog
• Manage Accounts > Select the account and click on change
• Click "Picture Option", this will give you 3 more option - SharePoint Blog, My Own Server and don't upload images
• Select the second option
• Provide URL of another picture library where you want to upload images into source and upload URL, click OK.
• It will give you pop up after successful registration

Or

Direct posting on SharePoint Blog site

If you are directly creating posts inside blog site then you have to first create another picture library and while you are inserting an image it will give an option where to save this image.

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Session state can only be used when enableSessionState is set to true, either in a configuration file or in the Page directive- SharePoint2010

Complete Error Message

Session state can only be used when enableSessionState is set to true, either in a configuration file or in the Page directive. Please also make sure that System.Web.SessionStateModule or a custom session state module is included in the <configuration>\<system.web>\<httpModules> section in the application configuration.

Before you start your troubleshooting, make sure that the State Service service application is running. How you will check this?

The security validation for this page has timed out. Click Back in your Web browser, refresh the page, and try your operation again

Problem Description
The security validation for this page has timed out" error message when a user submits data to Windows SharePoint Services

Error Message
The security validation for this page has timed out. Click back in your Web browser, refresh the page, and try your operation again.

If you are facing this error message then Microsoft has already published an article on this which is very useful and resolves your issues. Million thanks to Microsoft for publishing this detail information along with root cause.
Thanks to MS

Resolution
http://support.microsoft.com/kb/888828

Content databases contain orphaned items

Problem Description
The SharePoint Health Analyzer detected an error. 

Content databases contain orphaned items.

EXECUTE permission was denied on the object 'proc_putObject', database 'SharePoint_Config', schema 'dbo'

Problem Description
While I was deploying my solution , got an exception as follows

Error MessageEXECUTE permission was denied on the object 'proc_putObject', database 'SharePoint_Config', schema 'dbo'

Reference links for March Public Update for SharePoint 2013

• http://blogs.technet.com/b/stefan_gossner/archive/2013/03/21/march-public-update-for-sharepoint-2013-available-and-mandatory.aspx  

http://blogs.technet.com/b/praveenh/archive/2013/03/19/march-2013-public-update-pu-for-sharepoint-server-2013-is-here.aspx

http://blogs.technet.com/b/mspfe/archive/2013/04/05/sharepoint-2013-march-2013-public-update-required-for-future-cumulative-updates.aspx

http://www.toddklindt.com/blog/Lists/Posts/Post.aspx?ID=398

http://blogs.msdn.com/b/chhopkin/archive/2013/04/04/sharepoint-2013-updates-as-of-april-2013.aspx

http://blogs.msdn.com/b/russmax/archive/2013/04/01/why-sharepoint-2013-cumulative-update-takes-5-hours-to-install.aspx

http://technet.microsoft.com/en-us/sharepoint/jj891062.aspx

http://www.microsoft.com/en-in/download/details.aspx?id=36987

http://support.microsoft.com/kb/2767999

Windows could not start the SharePoint 2010 administration service on local computer.

Infrastructure:
SP Version: Microsoft SharePoint Server 2010-SP1
Server: Windows Server 2008 R2

Problem DescriptionNot able to start the SharePoint Administration 2010 Service in services.msc

ErrorWindows could not start the SharePoint 2010 administration service on local computer. 

Adding an Email Link in SharePoint site page

There was a requirement raised by one of my user to add Email lnk to the SharePoint site page, I followed below steps to achieve this

 

Add Content Editor Web Part on the page and in source editor insert following code

<a href="mailto:abc@xyz.com">Email Us</a>

or 

open a site page in SharePoint Designer, select the location where you have to put the link and then insert above code

or 

if you want users to directly open email link on a page when they click on "Email Us / Contact Us" button then assign "OnClick" event to Contact Us button / tab with above code 

<INPUT TYPE="button" VALUE="Email Us" onClick="parent.location='mailto:abc@xyz.com'">

hope this helps