6 Essential Windows Security, Password, and Privacy Tips (Video in Khmer)

Hello friends! Today I share 6 essential Windows security, password, and privacy tips. Protect your computer from virus, lock your file with password, and stop other people copy your data. All video is speak in Khmer, short and easy to follow step by step.

1. Best 7 Free Antivirus for Windows

Don't have money buy antivirus? No problem. This video show 7 best free antivirus for Windows that can protect your computer.

2. How to Turn Off Antivirus on Windows 10

Sometime antivirus block program you trust, or make install fail. This video show how to turn it off for short time.

3. How to Use BitLocker to Protect Files in Windows 10 Pro

Laptop lost or stolen? With BitLocker, nobody can read your file without password. This video show how to use BitLocker in Windows 10 Pro.

4. How to Lock Data Drive with BitLocker Password

Want lock only drive D or E that have important file? This video show how to put password on data drive with BitLocker.

5. How to Set Master Password / BIOS Password on Windows 10, 8, 7

Windows password is not enough. BIOS password ask password before Windows even start. This video show how to set it.

6. How to Hide or Disable USB Flash on Windows 10

Don't want other people copy your data with USB? Or USB bring virus to your computer? This video show how to hide or block USB flash.

Quick Tips

Here is some extra tip to go with the video. Try it on your computer!

Antivirus

Microsoft Defender is free and already in Windows 10/11. For most people, it is enough.
Only use one antivirus. Two antivirus together make computer slow and fight each other.
Keep antivirus update and run Quick scan every week.

Turn off antivirus (short time only)

Windows Security > Virus & threat protection > Manage settings > Real-time protection > Off.
Windows will turn it back on auto after some time.
Don't forget turn it on again! Only turn off when you sure the file is safe.

BitLocker

Only have in Pro, Enterprise and Education. Windows Home don't have it (some laptop have Device encryption instead).
Right click drive in File Explorer > Turn on BitLocker.
Save Recovery key to Microsoft account, USB or print it. Lose password and recovery key = lose all data forever!
Check status: open Command Prompt as admin, type manage-bde -status.
Lock drive again fast: restart computer.

BIOS password

Restart and press BIOS key like F2, Del, F10 or Esc (depend on brand). Find Security tab.
Supervisor / Admin password — protect BIOS setting.
User / Power-on password — ask password when turn on computer.
Write password in safe place. Forget BIOS password is very hard to reset, especially on laptop!

Hide or disable USB

Hide drive: press Windows + X > Disk Management, right click drive > Change Drive Letter and Paths > Remove.
Disable USB storage: press Windows + R, type regedit, go to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\USBSTOR and change Start to 4. Change back to 3 to enable.
Mouse and keyboard USB still work. Only USB flash and hard disk is block.
Be careful when edit registry. Wrong change can break Windows!