You cannot use keyboard shortcuts to select multiple items in Windows Explorer after upgrading from Windows XP to Windows Vista.
For example, you cannot use the CTRL+A keyboard shortcut to select all the items in a Windows Explorer window. Or, you cannot select multiple items in a Windows Explorer window by holding the SHIFT key or the CTRL key while you click the items.
This problem occurs because a registry key that prevents you from selecting multiple items in Windows Explorer is added to the registry.
Diagnose and fix the problem automatically
The Diagnose and repair Windows File and Folder Problems automatically troubleshooter may automatically fix the problem described in this article.
The Diagnose and repair Windows File and Folder Problems automatically troubleshooter may automatically fix the problem described in this article. This troubleshooter fixes many problems.Learn moreRun now
Let me fix it myself
Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:
322756 How to back up and restore the registry in Windows
To fix this problem, follow these steps:
Click Start , click Run, type Regedit.exe, and then press OK.
Locate and then click the FFlags registry value in the following registry subkeys:
In the Value data box, type 40200001, and then click OK.
Restart the computer to apply the change.
How the MATS package works to fix this problem
The MATS package scans your computer and detects if the the computer is running Windows Vista.
The MATS package set the FFlags registry value in the registry subkeys to 40200001 if the FFlags registry value exists in the registry subkeys and if the FFlags registry value is not equal to 40200001.
Note During this process, a dialog box appears. This dialog box gives you the option to fix the issue automatically (This is the recommended option) or to manually select individual issues to fix. If you manually select individual issues to fix, you have to select the Others or I don’t know option from the dialog box.
The MATS package verifies that the registry value was created successfully.
Other issues that the MATS package fixes
2394521 Can't empty the Recycle Bin in Windows XP or in Windows Vista
949109 "The file or folder does not exist" error in Windows Vista
934160 "Network or file permission" or "folder does not exist" error
813711 Changes to the size, view, icon or position of a folder are lost