Lam the nao de vo hieu hoa cac o USB

Bai viet Quan Tri Mang muon gioi thieu hai phuong phap ngan chan nguoi dung ket noi vao he thong cua ban bang o USB. Cach thuc nay cung cho phep bao ve duoc tai nguyen cua ban, nhat la doi voi nhung nguoi su dung chung mot may tinh ma khong muon cho nguoi khac co the dung USB de copy nhung du lieu quan trong khac trong may.

De vo hieu hoa su dung cac thiet bi luu tru USB, su dung mot trong nhung thu tuc sau:

Neu o dia USB chua duoc cai dat tren may tinh

Trong truong hop nay ban chi dinh nguoi dung hoac tu choi nhom o cac file duoi day:

• %SystemRoot%\Inf\Usbstor.pnf
• %SystemRoot%\Inf\Usbstor.inf

Khi thuc hien nhu vay, nguoi dung khong the cai mot o USB vao may tinh. De chi dinh mot nguoi dung moi hoac tu choi nhom trong file Usbstor.pnf va Usbstor.inf ban thuc hien theo cac buoc sau:

1. Vao Windows Explorer, sau do vao thu muc %SystemRoot%\Inf.

2. Kich chuot phai vao file Usbstor.pnf sau do kich Properties.

3. Chon tab Security.

4. Trong danh sach Group or user names, nhan nguoi dung hoac nhom ma ban muon thiet lap su tu choi.

5. Trong danh sach Permissions for UserName or GroupName, nhan de chon check box Deny ben canh Full Control, sau do kich OK.

    Chu y bo sung them tai khoan he thong vao danh sach tu choi (Deny).

6. Kich chuot phai vao file Usbstor.inf, sau do kich Properties.

7. Chon tab Security.

8. Trong danh sach Group or user names, kich vao nguoi dung hay nhom ban muon thiet lap su han che.

9. Trong danh sach Permissions for UserName or GroupName, chon check box Deny ben canh Full Control, sau do kich OK.

Neu o USB da duoc cai dat tren may tinh

Khi ban thuc hien voi regedit co the co nhung nguy hiem doi voi may tinh neu thuc hien sai, toi te nhat la ban co the phai cai dat lai he dieu hanh cho may tinh. Microsoft cung khong bao dam nhung van de gay ra voi regedit co the giai quyet duoc. Trong truong hop o dia USB da duoc cai dat tren may tinh thi ban tien hanh viec vo hieu hoa nhu sau:

1. Nhan Start, sau do nhan Run.

2. Danh regedit sau do nhan OK.

3. Vao: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\UsbStor

4. O cua so ben phai, kich dup Start.

5. Thay doi gia tri trong hop bang 4 sau do nhan OK.

6. Thoat khoi Registry Editor.

Cach tien hanh tren duoc ap dung voi cac phien ban sau

• Microsoft Windows XP Home Edition
• Microsoft Windows XP Professional
• Microsoft Windows 2000 Advanced Server
• Microsoft Windows 2000 Professional Edition
• Microsoft Windows 2000 Server
• Microsoft Windows Server 2003, Enterprise Edition
• Microsoft Windows Server 2003, Standard Edition

 Theo Microsoft