Delete the registry key in bat mode.

Delete an entry in the Registry
Windows Registry Editor Version 5.00

[-HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows \ CurrentVersion \ Run]
Save as reg file double-click Export to delete this item
Note that there is a "-" number.

Delete a value in the Registry
Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows \ CurrentVersion \ Run]
"Soundman" =-
This allows you to delete this value.

Start/disable a service
Type corresponding to the registry [HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Services]
Subitem
The START key under the service name indicates the start type.
1 is System
2 is automatic
3 is manual
4 is disabled

PS: forcibly terminate the process when necessary
In XP Pro, you can select the taskkill command. You can use taskkill/? In the command line /? View Detailed Help
E.g. Terminate notepad: taskkill/IM notepad.exe/F
/F indicates force termination.
In the home version, there is no taskkill command and only the tskill command. If the function is e.g., the notepad: tskill notepad will be terminated.

Transferred from [http://www.2astudio.com/post/regoperation.html]

The following is how to delete the Kaspersky registry:
Windows Registry Editor Version 5.00

[-HKEY_LOCAL_MACHINE \ SOFTWARE \ kasperskylab \ licstorage]
[-HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Cryptography \ RNG]
[-HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ systemcertificates \ SPC \ certificates]