The ghost is made from the original Windows 7 Ultimate installer from the Microsoft homepage.
Do not install any software other than Full Soft & Full Driver
Use the latest EasySysprep_18.104.22.1689 to sysprep. Especially the ghosts made of ES4 I feel very smooth.
Tweaking regedit, defragmenting, … this time I just turned off the service is windows update, windows Firewall to avoid service errors.
Do not personalize any component of Windows