那不如直接在電腦下命今, 設定可使用時間
net user username/time:{times | all}

The times the user is allowed to use the computer.
The times value is expressed as day[-day][,day[-day]] , time[-time][,time[-time]], limited to 1-hour time increments.
Days can be spelled out or abbreviated (M,T,W,Th,F,Sa,Su).
Hours can be 12- or 24-hour notation. For 12-hour notation, use AM, PM, or A.M., P.M.
The value all means a user can always log on.
A null value (blank) means a user can never log on.
Separate day and time with commas, and units of day and time with semicolons (for example, M,4AM-5PM;T,1PM-3PM).
Do not use spaces when designating /times.

又或直接設定關機時間
at XX:XX shutdown -s -f

當然前提是樓主要有admin權力, 而使用者沒有, 而BIOS也要設定進入密碼