quản lý các kết nối không dây, và chia sẻ nguồn lực, chẳng hạn như một kết nối Internet. Nếu bạn sẽ sử dụng một mạng không dây nhất quán, một cơ sở hạ tầng mạng không dây là hầu như luôn luôn là sự lựa chọn tốt nhất. Tuy nhiên, đôi khi bạn có thể muốn thiết lập một | 224 Part III Advanced Create a New USB Key to Replace a Lost Key If your USB key is permanently lost rather than having been say left at home or at work you can create another key. Follow these steps 1. Choose Start Control Panel to display a Control Panel window. 2. If the Control Panel window is in Control Panel Home view showing a list of major and minor headings click the Classic View link in the upper-left corner to switch to Classic view. 3. Double-click the BitLocker Drive Encryption icon and then go through User Account Control for the BitLocker Drive Encryption program unless you ve turned off User Account Control to open a BitLocker Drive Encryption window. 4. Click the Manage BitLocker Keys link to display the Select Keys To Manage window. 5. Click the Duplicate The Startup Key link to display the Copy Startup Key screen. 6. Insert the USB key you want to use select it in the list box and then click the Save button. Step 7 Decrypt a Disk That s Encrypted with BitLocker If you decide that BitLocker is overkill for your protection needs you can decrypt your hard disk again. To decrypt a disk follow these steps 1. Choose Start Control Panel to display a Control Panel window. 2. If the Control Panel window is in Control Panel Home view showing a list of major and minor headings click the Classic View link in the upper-left corner to switch to Classic view. 3. Double-click the BitLocker Drive Encryption icon and then go through User Account Control for the BitLocker Drive Encryption program unless you ve turned off User Account Control to open a BitLocker Drive Encryption window. 4. Click the Turn Off BitLocker link to launch the BitLocker Drive Encryption Wizard which displays the What Level Of Decryption Do You Want screen shown next. Project 20 Seal Your Private Data in an Uncrackable Virtual Locker 225 5. Click the Decrypt The Volume button to start the decryption. As with the encryption decryption can take a while for example up to several hours . .
