How To Change Windows 7 Logon Screen

For that you have to follow 4 easy steps,

1. Download the registry file from here. Extract the file and double-click on the file to enable this feature (Alternative method: right-click, select Merge).

2. Now, head over to the following folder:

C:\Windows\System32\oobe (“C” is your Windows Seven Installation drive)

3. Here, create a new folder named Info. Again, create a new folder inside the Info folder and rename it as backgrounds.

4. Copy your favorite image file to this folder and rename it as backgroundDefault. Note that the image must be in JPG format and the size should be less than 256 KB

After rebooting the system you screen changed,

How to move public folder from one Exchange server to another Exchange server

This is really tough task, when you want to move public folder database from one server to another server in exchanger server 2007, Exchanger Server 2010,
before starting the activity you have to create one public folder on server,
Stpe-1: After creating the public folder you have to execute the command
.\MoveAllReplicas.ps1 -Server Server1 -NewServer server2
but before executing this command you have to set the directory,
Cd program files>microsoft>exchange server>v14>scripts then execute .\MoveAllReplicas.ps1 -Server Server1 -NewServer server2



after executing your public folder will move,
Stpe-2: verify public folder is moved or not-
run the following command -
Get-PublicFolderStatistics -Server



if that is showing nothing means your public folder is moved to destination server.

Stpe-3: To get a listing of all system folders on this database, run the command

Get-publicfolder \NON_IPM_SUBTREE -recurse |ft Name,Replicas



Stpe-4: then you have to set public folder default on that server where you have moved,
follow the following steps,

1. In the console tree, navigate to Organization Configuration > Mailbox.
   
2. In the result pane, select the mailbox database for which you want to change the default public folder database.
   
3. In the action pane, under the mailbox database name, click Properties.
   
4. In Properties, click the Client Settings tab.
   
5. Next to the Default public folder database box, click Browse.
   
6. In Select Public Folder Database, select the public folder database from the list of public folder databases, and then click OK.
   
7. Click OK

Stpe-5: Remove old public folder:

you can directly remove public folder from console which are not in use

but you public folder should be mounted to mailbox server.