How to Enable or Disable Lock Computer in Vista

Information
This will show you how to Enable or Disable Lock computer from working, and add or remove it from the Windows Security screen when you press CTRL+ALT+DEL for all user accounts on the computer. Lock is enabled in Vista and is listed in the CTRL+ALT+DEL menu by default.

Note
When the computer is locked, the desktop is hidden and the system cannot be used. Only the user who locked the computer or the system administrator can unlock it with their password (if created).

Warning
EXAMPLE: Default (Added) and Removed Lock this computer in Ctrl+Alt+Del
OPTION ONE
Through the Local Group Policy Editor
NOTE: This option is only available for the Vista Business, Ultimate, and Enterprise editions. See OPTION TWO or OPTION THREE below for the Vista Home Basic and Home Premium editions.
1. Open the
all users,
specific users or groups, or
all users except administrators Local Group Policy Editor for how you want this policy applied.
2. In the left pane, click on
User Configuration,
Administrative Templates,
System, and
Ctrl+Alt+Del Options. (See screenshot below)
3. In the right pane, right click on
Remove Lock Computer and click on
Properties. (See screenshot above)
4. To Enable and Add Lock Computer A) Dot Disabled or Not Configured and click on OK. (See screenshot below step 5A)
B) Go to step 6.
5. To Disable and Remove Lock Computer A) Dot Enabled and click on OK.
6. Close the Local Group Policy Editor window. Your done.
OPTION TWO
Using a REG File Download
NOTE: This option will work in all Vista editions.
1. To Enable and Add Lock Computer A) Click on the Download button below to download the file below.
Add_Enable_Lock_CtrlAltDel.reg
B) Go to step 3.
2. To Disable and Remove Lock Computer A) Click on the Download button below to download the file below.
Remove_Disable_Lock_CtrlAltDel.reg
3. Click on
Save, and save the
.reg file to the
Desktop.
4. Right click on the downloaded
.reg file and click on
Merge.
5. Click on
Run,
Continue (UAC),
Yes, and then
OK when prompted.
6. Log off and log on, or restart the computer to apply the changes.
7. When done, you can delete the
.reg file if you like.
OPTION THREE
Manually in Registry Editor
NOTE: This option will work in all Vista editions.
1. Open the Start Menu.
2. In the white line (Start Search) area, type
regedit and press
Enter.
3. Click on the
Continue button in the UAC prompt.
4. In regedit, go to: (See screenshot below step 5C)
NOTE: If you do not have System, then right click on Polices and click on New and Key, then type System and press Enter. HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System 5. To Disable and Remove Lock Computer A) In the right pane, right click on a empty area and click on
New and
DWORD (32-bit) Value. (See screenshot below step 5C)
B) Type
DisableLockWorkstation and press
Enter. (See screenshot below step 5C)
C) Right click on
DisableLockWorkstation and click on
Modify. (See screenshot below)
D) Type
1 and click on
OK. (See screenshot below)
6. To Enable and Add Lock Computer A) In the right pane, right click on DisableLockWorkstation and click Delete. (See screenshot below step 5C)
B) Click on Yes to confirm the deletion.
7. Close regedit.
That's it,
Shawn