Locating a subtree, key, subkey, or value
There are five top-level registry subtreesEach of them starts with "HKEY." In the following example, HKEY_LOCAL_MACHINE is the subtree, SOFTWARE is the key, and Microsoft is the subkey.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft
In Registry Editor, you can search through the keys and subkeys in the same way that you search through your folders in Windows Explorer.
The keys and the subkeys are listed in a folder tree in the left pane of Registry Editor. If you click a key or a subkey in the left pane, information about the value name, the value type, and the value data appears in the right pane.
As in Windows Explorer, each folder may be expanded by clicking the plus sign (+) that is next to it. After a folder is expanded, the plus sign changes to a minus sign (-).
To locate the Microsoft subkey, follow these steps:
1. Click Start, click Run, type regedit, and then click OK.
2. Expand HKEY_LOCAL_MACHINE.
3. Expand SOFTWARE.
4. Click Microsoft.
Note When you click the Microsoft subkey, its values appear in the right pane. To view the next lower level of subkeys, expand the Microsoft subkey. To locate a value, click the subkey that contains the value, and then view the contents of the right pane.
Adding a key
To add a new subkey named TestSubkey to the Microsoft subkey, follow these steps:
1. Expand HKEY_LOCAL_MACHINE.
2. Expand SOFTWARE.
3. Click the Microsoft subkey.
4. On the Edit menu, point to New, and then click Key.
5. Type TestSubkey, and then press ENTER.
Adding a value
To add a new DWORD Value named TestDWORD and to set its value data to 1 in the TestSubkey key, follow these steps:
1. Expand HKEY_LOCAL_MACHINE.
2. Expand SOFTWARE.
3. Expand Microsoft.
4. Click the TestSubkey subkey.
5. On the Edit menu, point to New, and then click DWORD Value.
6. Type TestDWORD and then press ENTER..
7. Right-click the TestDWORD DWORD Value, and then click Modify.
8. Type 1, and then click OK.
Changing a value
To change the value data for the TestDWORD DWORD Value to 0 in the TestSubkey key, follow these steps:
1. Expand HKEY_LOCAL_MACHINE.
2. Expand SOFTWARE.
3. Expand Microsoft.
4. Click the TestSubkey subkey.
5. Right-click the TestDWORD DWORD Value, and then click Modify.
6. Type 0, and then click OK.
Manual steps to rename a key or value
To rename the TestSubkeysubkey to Test, follow these steps:
1. Expand HKEY_LOCAL_MACHINE.
2. Expand SOFTWARE.
3. Expand Microsoft.
4. Right-click the TestSubkey key, and then click Rename.
5. Type Test, and then press ENTER.
Deleting a key or value
To delete the TestDWORD DWORD Value in the TestSubkey subkey, follow these steps:
1. Expand HKEY_LOCAL_MACHINE.
2. Expand SOFTWARE.
3. Expand Microsoft.
4. Click the TestSubkey subkey.
5. Right-click the TestDWORD DWORD Value, and then click Delete.
6. Click Yes to confirm that you want to delete the value.
I hope you will find it useful. 