1. Open Internet Information Services (IIS) Manager
2. Navigate to down to the site that is your SharePoint 2010 instance.  Typically, this will be named “SharePoint – 80”.
3. Open the Modules settings.
4. Under the Actions menu to the right, select Add Managed Module…
5. Wait for the dialog to pop up…(it takes a bit)
6. Enter a name for the new module, like “SessionState” (this is for reference only), and select the type of System.Web.SessionState.SessionStateModule, Version=2.0.0.0.

Log Name: Application
Source: Microsoft-SharePoint Products-SharePoint Foundation Search
Event ID: 14
Task Category: Gatherer
Level: Warning
User: Domain\User
Computer: computer.domain.local
Description:
The start address sts4://sharepoint.website.com/contentdbid={xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx} cannot be crawled.
Context: Application ‘Serve_search_queries_over_help_content’, Catalog ‘Search’
Details:
Access is denied. Verify that either the Default Content Access Account has access to this repository, or add a crawl rule to crawl this repository. If the repository being crawled is a SharePoint repository, verify that the account you are using has “Full Read” permissions on the SharePoint Web Application being crawled. (0×80041205)

Reason:
This error will occur, at the time of crawling the SharePoint application content because you may have provided a URL to access the SharePoint web application like http://sharepoint.website.com.
When the search engine tried to crawl the content using the sharepoint.website.com URL, the server will reject the request because it will take the request as “LoopBackRequest”.

Solution:
You need to disable the LoopBackRequest in registry. To do this follow these instructions:

1. Go to command window and type regedit.exe
2. Once opened the registry editor, just navigate to “HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa”
3. Right click on “Lsa” and create a new 32bit DWORD value
4. Rename it as “DisableLoopbackCheck” (Note: you cannot rename it actually. so, once created the DWORD value, directly paste/type as “DisableLoopbackCheck”.
5. Then again modify the value of “DisableLoopbackCheck” as “1″
6. Close the registry editor.
7. Now start to crawl the content.

This error can occur when the folder that contains Adobe Acrobat or Adobe Reader, or one of it parent or sub-directories has been renamed or moved, or Adobe Reader or Acrobat has otherwise become confused which exact application to use as helper application within the browser.

SOLUTION

Solution 1: Make sure the registry setting that tells the browser where to find Adobe Acrobat or Adobe Reader is correct.Disclaimer: The registry contains system-related information that is critical to your computer and applications. Before modifying the registry, be sure to make a backup copy of it. Adobe doesn’t provide support for problems that may arise from improperly modifying the registry. Adobe strongly recommends that you have experience editing system files before you modify the registry. For information on the Windows Registry Editor, see the documentation for Windows or contact Microsoft Technical Support.

Go to Start > RunType regedit and click OK.Browse to the following key: HKEY_CLASSES_ROOT\Software\Adobe\Acrobat\ExeMake sure that the correct Default data value is set for the path where Adobe Reader or Acrobat are installed.The default installation values are “C:\Program Files\Adobe\Reader 9.0\Reader\AcroRd32.exe” or “C:\Program Files\Adobe\Reader 9.0\Reader\Acrobat.exe”, depending on whether Adobe Reader or Adobe Acrobat is installed.

Solution 2: Configure the browser to use Acrobat or Adobe Reader as a helper application.After you configure Acrobat or Adobe Reader as a helper application, the browser starts the helper application in a separate window and displays PDF files within that window. Acrobat and Adobe Reader both include a preference that lets you specify Acrobat or Adobe Reader as the helper application.

To configure Acrobat or Adobe Reader as a helper application:Start Acrobat or Adobe Reader.Choose Edit > Preferences.Select Internet on the left.Deselect Display PDF In Browser Using [Acrobat application], and then click OK.Quit Acrobat or Adobe Reader.The next time you select a link to a PDF file in the browser, a dialog box asks what you would like to do with the file. If you select Open It, the browser opens the PDF file in Acrobat or Adobe Reader (the helper application); if you select Save It To Disk, the browser saves the PDF file to your hard drive.

Solution 3: Make sure all previous version of Acrobat and Adobe reader are removed from your computer.Make sure all previous versions of Acrobat and Reader have been removed from your computer. Reinstall from Acrobat disk or download. In the case of Reader install from the download. If installing on Vista then right-click on the Installer and choose to Run As Administrator.

Solution 4: Run Acrobat/Reader in a new local administrator account.Create a new user account that has the same permissions as the account you use when the problem occurs, or create a new local administrator account. If the problem doesn’t recur when you are logged on to the new account, then the original user account may be damaged.

I would Receive the following error message:

“Your client does not support opening this list with Windows Explorer”

Steps I took to resolve:

Server 2008 R2 > SharePoint 2010 > Claims Based Authentication.

Site is configured for Windows and Form Based Authentication.

Enable the following Box under Central Administration:

Under Security > Authentication Providers > Default (Claims Based Authentication) > Client Integration “Yes”

Install Desktop Experience on the Server – under Features.

Confirm that WebClient service is enabled and running on Server

On Client machine:

1. Add the SharePoint Site to your “Trusted Sites” list
2. When logging into the site as “windows Authenticated User” Make sure to check the box “Remember my password”
3. Verify thT WebClient Service is running under windows services.

| out-file c:\test.txt

The symbol shown is the “pipe” symbol, shift+backslash

example command: get-spwebapplication | out-file c:\test.txt

If you receive an error message because you are trying to right the file to the C: drive. Make sure you are running powershell in Administrative mode (right click > run as administrator) when launching powershell.

(the max limit of corrupted emails through the exchange console is 50 items ignored)

I completed the following command using Powershell and set the bad item limit to 400 to allow it to successfully migrate.

New-MoveRequest -Identity ‘doku’ -PrimaryOnly -TargetDatabase “Mailbox Database 0578547232″ -BadItemLimit 400 -AcceptLargeDataLoss

http://technet.microsoft.com/en-us/library/bb124495.aspx

http://technet.microsoft.com/en-us/library/bb123805.aspx

I received an error message in SharePoint stating the following:

The Security Token Service is not available – The Security Token Service is not issuing tokens. The service could be malfunctioning or in a bad state.

I also receive a windows application event log error:

An exception occurred when trying to issue security token: The HTTP request is unauthorized with client authentication scheme ‘Negotiate’. The authentication header received from the server was Negotiate, NTLM.

Source: SharePoint Foundation

Event ID: 8306

Upon receiving this error message I investigated the Authentication settings for my SharePoint Web Services (this is the site responsible for issuing the security tokens).

Under IIS 7 > Sites > SharePoint Web Services > Authentication > Windows Authentication (enabled) > Advanced Settings > Check Enable Kernal-mode authentication.

I found that this was unchecked, upon checking this setting and completing an IISRESET (from PowerShell) the Security Token issue was resolved and the alert no longer shows in Central Administration.

http://technet.microsoft.com/en-us/library/aa996924.aspx

http://technet.microsoft.com/en-us/library/aa996924.aspx

EMS command:

New-RoutingGroupConnector -Name "Interop RGC" -SourceTransportServers

"Ex2010Hub1.contoso.com" -TargetTransportServers "Ex2003BH1.contoso.com"

 -Cost 10 -Bidirectional $true -PublicFolderReferralsEnabled $true