To run the OUTLOOK  Inbox Repair Tool ScanPST.exe (ScanOST for exchange), follow these steps:

1.       Exit Outlook.

2.       Make sure that the Show hidden files and folders option is enabled in your folder options.

3.       The Scanpst.exe is a hidden file on your computer, and you might be unable to locate it if this setting is not enabled. To check this setting, follow these steps:

a.       Click Start, and then click Run. Type Control Folders, and then click OK.
Note If you are using Windows Vista, use the Start Search box.  Right-click Control Folders, and then click Run as administrator.

b.       Double-click Folder Options.

c.       Click the View tab.

d.       Under Hidden files and folders, make sure the Show hidden files and folders option is selected, and then click OK.

4.       Click Start, and then click Find or Search, depending on which version of Windows that you are running.

5.       In the search box, type Scanpst.exe. If you cannot find the Scanpst.exe file by using Find or Search, try to locate the file manually. Check the following locations for the file. Where the file is located depends on which version of Windows you are using:

o        disk drive:\Program Files\Microsoft Office\OFFICE12

o        disk drive:\Program Files\Common Files\System\Mapi\1033\

o        disk drive:\Program Files\Common Files\System\Mapi\1033\NT

o        disk drive:\Program Files\Common Files\System\MSMAPI\1033

o        disk drive:\Program Files(x86)\Microsoft Office\Office12

o        disk drive:\Program Files(x86)\Common Files\System\Mapi\1033\

o        disk drive:\Program Files(x86)\Common Files\System\MSMAPI\1033

6.       Double-click the Scanpst.exe file to open the program.

7.       Click Browse to locate the .pst file.

o        Windows 98 or Windows Me: disk drive\Windows\ Local Settings\Application Data

o        Windows NT 4.0: disk drive\WINNT\Profiles\username\Local Settings\Application Data

o        Windows XP or Windows Server 2003: disk drive:\Documents and Settings\username\Local Settings\Application Data\Microsoft\Outlook

o        Windows Vista: disk disk drive:\users\username\AppData\Local\Microsoft\Outlook

Note If your operating system is not listed or if you cannot find the file, see the Help provided with Outlook.

8.       Click Start. The Inbox Repair Tool scans the file and reports whether it found any errors.

9.       Click OK.

When you tried to open Device Manager or the Computer Management window, you received an error message that resembles the following:
 
MMC cannot open the file C:\WINDOWS\system32\devmgmt.msc

This issue may occur when one or more of the .dll files that are used by
the Microsoft Management Console (MMC) are missing or corrupted.

These files include the following:

Msxml.dll
Msxml2.dll
Msxml3.dll

To resolve this issue, follow these steps:

Click Start, click Run, type cmd, and then click OK.

At the command prompt, type cd %windir%\system32, and then press ENTER.

Note The %Windir% folder is the folder where you installed Microsoft Windows.

Type the following commands.

Press ENTER after each command.

Regsvr32 Msxml.dll
Regsvr32 Msxml2.dll
Regsvr32 Msxml3.dll

Type exit, and then press ENTER to close the Command Prompt window.
Restart the computer.

If you've ever needed to access important files stored in a shared folder on your network but couldn't because your laptop was disconnected from the network, then you can understand the need for offline files. With offline files, you can access copies of your network files even when your computer isn't connected to the network.

Working with offline files is easy. You just choose the files (or folders) on your network that you want to make available offline. Windows automatically creates a copy of each file on your computer. These copies are called offline files. You can work with these files even when you're not connected to the network, and the next time you connect, Windows will automatically sync your offline files with the original files in the network folder.

Reasons to use offline files

Offline files offer several advantages if you work with files stored in shared network folders. By working with offline files, you can:

•Remain unaffected by network outages. When you use offline files, it doesn't matter if your network goes down or the network folder you are accessing becomes unavailable. If either occurs, Windows automatically opens offline copies of files stored on your computer instead of the files on the network folder, and you can continue working without interruption.

•Work with files while you are away from the network. When you're disconnected from the network, you normally can't open any files stored on the network. With offline files, you can disconnect from the network and still have copies of all the network files you've made available offline. This is particularly useful if you travel with a laptop.

•Easily sync with network files. Anytime you want to sync with the latest version of files in a network folder, you can do so with the click of a button.

•Boost your efficiency when working over a slow connection. When you are connected to a network with a slow connection, working with files in a shared network folder can be inefficient and slow. To speed things up, you can easily switch to working with offline copies of your network files at any time.

Keeping your offline files in sync

When you select a network file or folder to make available offline, Windows automatically creates a copy of that file or folder on your computer. Anytime you reconnect to that network folder, Windows syncs the files with those in the network folder. You can also sync them manually at any time.

That's all you really need to know to keep your offline files in sync. However, for the curious, here are some additional details:

•If you are working offline and make changes to offline files from a network folder, Windows automatically syncs any changes you made to the files the next time you connect to that network folder.

•If you are working offline while someone else changes a file in a shared network folder, Windows syncs those changes with the offline file on your computer the next time you connect to that network folder. If you have also changed the file since you last connected to the network folder, a sync conflict will occur and Windows will ask you which version you want to keep.

Depending on the size of your hard disk, you might need to manage the amount of space your offline files use. For more information, see Manage disk space for offline files.