Summary

Product:	F-PROT Antivirus for Windows
Version:	3

Please note that version 6 of F-PROT Antivirus for Windows has been released. We recommend that all Home, Corporate and Mail Server users of version 3 of F-PROT Antivirus for Windows upgrade their program to the newest version as soon as possible.

Deleting and editing from the registry

The Windows Registry is a set of data files used to help Windows control hardware, software and the user's environment. Some viruses insert new registry values or edit existing ones to gain better control of the infected computer. For instance, Windows executes all instructions in the "Run" section of the Windows Registry. If a virus inserts its value in the "Run" section of the Windows Registry, it will execute each time the infected computer is booted up. For information on how to edit and delete values from the registry, see below:

Locating a Key, Subkey, or Value

To start the registry editor, click on Start -> Run and type regedit in the field. Press "Ok" to confirm. Now the registry editor opens. There are five different top-level registry keys (or hives). They each start with "HKEY", for example: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft

The keys and subkeys are listed in a folder tree in the left pane of Registry Editor. If you click a key or subkey in the left pane, information about that key appears in the right pane.

To locate the registry key listed in this section, 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, the different values (but not subkeys) that it contains appear in the right pane. To view the subkeys, expand Microsoft. To locate a value, click the subkey that contains the value, and then view the contents of the right pane.

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.

Deleting a Key or Value

To delete the TestDWORD DWORD Value 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 Delete.
6. Click Yes to confirm that you want to delete the value.

For further information, please see the Microsoft's Help and Support:

• HOW TO: Back Up, Edit, and Restore the Registry in Windows XP and Windows Server 2003
• HOW TO: Backup, Edit, and Restore the Registry in Windows 2000
• HOW TO: Backup, Edit, and Restore the Registry in Windows 95, Windows 98, and Windows Me

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