Format computer complete tutorial

 

How to Format a Computer or Laptop & Install Windows 7, 8, or 10

Formatting your computer and reinstalling Windows can improve performance, fix system errors, and remove viruses or unwanted files. Follow this step-by-step guide to format your PC and install a fresh copy of Windows.

Requirements Before Formatting

✔ A bootable USB drive or DVD with Windows 7, 8, or 10.
✔ A backup of your important files (formatting erases everything).
✔ Your Windows product key (if required).

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Step-by-Step Guide to Format & Install Windows

Step 1: Enter Boot Menu

1. Insert the bootable USB or DVD into your computer.
2. Restart your computer and immediately press the F12 key (or F2, F9, Esc, or Del, depending on your PC brand) to open the Boot Menu.
3. From the Boot Manager, select your USB or DVD drive and press Enter.

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Step 2: Start Windows Setup

1. The Windows installation screen will appear.
2. Select your language, time, and keyboard input method, then click Next.
3. Click Install Now.
4. If prompted, enter your Windows product key.

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Step 3: Choose Installation Type

1. Select Custom Installation (this allows you to format the drive).
2. Locate the drive where Windows is currently installed (usually Drive C:).
3. Click on the drive and choose Format to erase old files.
4. Select the same drive for Windows installation and click Next.

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Step 4: Installing Windows

• Windows will begin installing, which takes around 10–20 minutes depending on your system.
• Your computer may restart several times during the process—this is normal.

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Step 5: Complete the Setup

1. After installation, set up your user account, password, and preferences.
2. Install drivers (graphics, Wi-Fi, sound) if needed.
3. Update Windows and install your essential software (browser, antivirus, etc.).