Wednesday, April 4, 2018

Hướng dẫn tắt User Account Control UAC trong Windows 10

Hướng dẫn tắt User Account Control UAC trong Windows 10



Ph?n 1: Gi?i thi?u v? User Account Control (UAC) trong h? ?i?u h�nh Windows


L?n ??u ti�n Windows Vista ???c c�ng b?, t�nh n?ng User Account Control (UAC) g?n nh? ngay l?p t?c ?� nh?n ???c s? ph?n ??i kh� m?nh t? ph�a c?ng ??ng ng??i s? d?ng. Theo nh?n ??nh t? ph�a c�c chuy�n gia b?o m?t th� ?�y l� 1 ph??ng �n b?o m?t kh� t?t, nh?ng ph?n l?n ng??i s? d?ng v?n ch?n c�ch t?t b? UAC v� ?� v� t�nh ?? �l?� nh?ng l? h?ng ?ang t?n t?i tr�n h? th?ng. Cho ??n l�c Windows 7 �l? di?n� th� t�nh n?ng n�y c?ng ?� ???c c?i ti?n kh� nhi?u, nh?ng ??ng th?i c?ng mang theo nhi?u s? tranh c�i kh�c nhau. V� trong b�i vi?t sau ?�y, ch�ng t�i s? ?i s�u v�o nh?ng chi ti?t c? th? c?a t�nh n?ng n�y c?a UAC, c? ch? ho?t ??ng, nh?ng l?a ch?n n�o th?c s? ph� h?p v?i m?i m?c ?�ch s? d?ng kh�c nhau, v� t?i sao ch�ng ta kh�ng n�n t?t b? ch?c n?ng n�y.
User Account Control (UAC) l� g�?
V? c? b?n, UAC (trong Windows Vista v� Windows 7, Windows 8.1, Windows10 ) s? gi�p ng??i s? d?ng qu?n l� v� gi�m s�t c�c s? thay ??i tr�i ph�p b�n trong h? th?ng. Ngu?n g?c c?a nh?ng s? thay ??i n�y c� th? l� c�c ?ng d?ng, virus, ho?c t? c�c t�i kho?n ng??i d�ng kh�c... UAC ??m b?o r?ng t?t c? c�c h�nh ??ng n�y ??u ?� ???c x�c nh?n t? t�i kho?n c� quy?n qu?n tr? � Administrator. N?u nh?ng thay ??i tr�n kh�ng ???c x�c nh?n t? Administrator th� h? th?ng s? kh�ng cho ph�p ti?p t?c, v� ???ng nhi�n Windows s? gi? nguy�n t�nh tr?ng hi?n th?i.
UAC ho?t ??ng nh? th? n�o?
 
C?ng trong Windows Vista v� 7,8.1 v� Windows 10 c�c ch??ng tr�nh ???c ho?t ??ng m� kh�ng c?n ??n quy?n qu?n tr? ? ch? ?? m?c ??nh, v� c� c�ng m?c quy?n v?i t�i kho?n ng??i d�ng b�nh th??ng. C�n ??i v?i nh?ng ch??ng tr�nh c� h�nh ??ng can thi?p s�u v�o h? th?ng nh? thay ??i giao di?n, y�u c?u s? d?ng chung c�c th? vi?n *.DLL c?a h? th?ng, c�i th�m ph?n m?m m?i... UAC s? hi?n th? v� y�u c?u s? x�c nh?n c?a ng??i s? d?ng:

N?u ng??i d�ng ch?n No, y�u c?u s? b? ng?n ch?n. C�n n?u ch?n Yes, ch??ng tr�nh s? nh?n ???c �s? c?p ph�p� t? t�i kho?n qu?n tr? v� ti?p t?c. ?? d? hi?u h?n v? c? ch? ho?t ??ng c?a UAC, ch�ng ta h�y c�ng xem s? ?? d??i ?�y:
Nh?ng thay ??i n�o y�u c?u quy?n Administrator:
V? c? b?n, c� kh� nhi?u s? thay ??i c?n t?i quy?n Administrator ?? th?c hi?n, 1 m?t kh�c ch�ng c?ng ph? thu?c v�o vi?c UAC ???c ?i?u ch?nh nh? th? n�o. C? th?, nh?ng thay ??i ch�ng ta ?ang nh?c ??n bao g?m:
 - K�ch ho?t 1 ch??ng tr�nh n�o ?�
 - Thay ??i thi?t l?p c?a h? th?ng, ho?c v?i c�c file trong th? m?c Windows & Program Files
 - C�i ??t, g? b? driver ho?c ph?n m?m
 - C�i ActiveX control
 - Thay ??i Windows Firewall, UAC, Windows Update
 - X�a b?t ho?c th�m t�i kho?n ng??i s? d?ng
 - Thay ??i m?c c?a t�i kho?n
 - Thi?t l?p Parental Control
 - Ho?t ??ng Task Scheduler
 - Sao l?u ho?c kh�i ph?c h? th?ng
 - Truy c?p v�o th? m?c ri�ng c?a t�i kho?n kh�c tr�n h? th?ng
 - Thay ??i ng�y, gi? c?a h? th?ng
S? kh�c bi?t gi?a c�c m?c UAC nh? th? n�o?
Kh�ng gi?ng v?i t�y ch?n UAC trong Windows Vista, v?n ch? c� 2 m?c: On v� Off, ng??i s? d?ng s? c� th�m 4 m?c trong Windows 7. C? th? nh? sau:
 - Always notify: ?�y l� m?c cao nh?t trong s? 4 t�y ch?n, t?t c? nh?ng g� ng??i s? d?ng mu?n th?c hi?n th� ??u ph?i ch?p nh?n y�u c?u t? ph�a h? th?ng (h�nh b�n d??i). ?�y c� th? coi l� ph??ng �n b?o m?t t?t nh?t, nh?ng c?ng ??ng th?i g�y ra nhi?u s? kh� ch?u nh?t:
- Notify me only when programs try to make changes to my computer: ?�y l� m?c l?a ch?n m?c ??nh c?a h? th?ng, v� s? ch? hi?n th? th�ng b�o t?i ng??i s? d?ng khi c� b?t c? ch??ng tr�nh n�o y�u c?u quy?n t�i kho?n ?? ???c k�ch h?at trong h? th?ng. L?a ch?n n�y �t g�y phi?n to�i cho ng??i d�ng v� kh�ng ph?i l�c n�o c?ng hi?n th? th�ng b�o nh? l?a ch?n ??u ti�n, tr? khi c� nh?ng y�u c?u ??c bi?t c� li�n quan t?i file h? th?ng. Khi h?p tho?i UAC n�y hi?n th?, c�c b?n ph?i ch?n Yes ho?c No ?? ti?p t?c. B�n c?nh ?�, c�ch th?c n�y �t hi?u qu? b?o m?t v� nh?ng ch??ng tr�nh ??c h?i ho�n to�n c� th? m� ph?ng l?i ch�nh x�c nh?ng ho?t ??ng c?a b�n ph�m v� chu?t, sau ?� tr?c ti?p can thi?p v�o ch�nh UAC theo c�ch n�y.
 - Notify me only when programs try to make changes to my computer (do not dim my desktop): l?a ch?n n�y kh�ng kh�c m?y so v?i m?c tr�n, ngo?i tr? khi b?ng th�ng b�o UAC hi?n th?, m�n h�nh Desktop s? kh�ng b? m? ?i v� b?n v?n c� th? th?c hi?n ???c thao t�c kh�c. Khi ch?n c�ch n�y, ng??i d�ng s? kh�ng c?m th?y kh� ch?u, ??ng th?i c?ng l� c�ch d? d�ng ?? c�c lo?i m� ??c x�m nh?p v�o h? th?ng.
 - Never notify: ? m?c l?a ch?n n�y, UAC s? kh�ng ho?t ??ng, ?i k�m v?i ?� l� h? th?ng c?a b?n ?� m?t ?i 1 l?p b?o v? kh� hi?u qu?. Ng??i s? d?ng ch? ch?n m?c n�y khi h? s? h?u 1 h? th?ng an ninh, b?o m?t th?c s? an to�n.

Ph?n  :H??ng d?n t?t User Account Control (UAC) trong Windows 10 ( B�i vi?t c� gi� tr? v?i c�c h? ?i?u h�nh kh�c )

C�ch 1: Trong Windows 10.Ta v�o Coltrol Panel b?ng c�ch nh�y chu?t ph?i v�o This PC ( My Computer ) v� ch?n Properties / Click v�o : Control Panel Home

Tham kh?o th�m 1 b�i vi?t ?? truy c?p Control Panel  nhanh h?n. :

H??ng d?n t�ch h?p Control Panel v�o menu chu?t ph?i trong Windows 10



 Ch?n: User Account.V� ch?n ti?p :Change User Account Control Setting. ( Click th�m YES khi c?n )
B?n k�o thanh tr??t t?: Always notify xu?ng Never notify ,ch?n OK l� xong.

 C�ch2: 
B?n v�o CMD g� regedit v� t�m t?i nh�nh sau:

HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionPoliciesSystem
 
 
Ta click ?�p chu?t v�o : EnableLUA. M?c ??nh Value data l� 1. T?c l� t�nh n?ng User Account Control (UAC) trong Windows 10
 ?ang ???c k�ch ho?t.Ta thay gi� tr? 1 n�y l� 0 . V� tho�t ra kh?i registry.
 T?i ?�y ta ch? c?n kh?i ??ng l?i m�y l� th�nh c�ng.

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