Use batchcompute to delete registry keys, registry key values, and disable/enable Windows Services.

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 is used. The function is weaker. E.g. Terminate notepad: tskill notepad