How to Clean Install Windows 10

Windows 10 clean installation is the best option when you require to configure new PC, upgrade an existing device, or reinstall Windows 10 to wipe out accumulated cruft or resolve Windows issues. There are several ways to cope up with a single problem, but a clean installation is widely opted by the experts.

Let’s discuss a complete step-by-step guide to clean install Windows 10 to extend the life of your old device.

Clean install Windows 10

Why You Need to Clean Install Windows 10?

If you reinstall Windows 10, it can solve various Windows 10 issues related to battery life, memory issue, startup or shutdown, third-party software, temporary files, configuration errors, performance or compatibility, and viruses or malware. To eliminate such problems of Windows 10, simply wipe out the data and perform a clean installation as this is the best troubleshooting technique. restore an old PC.

Sometimes, you face problems due to bugs of Windows 10 cumulative update that is installed on your PC, and in that case, you do not need to reinstall Windows 10, you can apply the Patch Tuesday update that is released on the second Tuesday of every month. These updates include fixes for bugs and quality enhancements. In case, the latest Windows 10 update is causing issues in your system, you can simply uninstall Windows 10 update and bring your PC to the previous state.

For upgrading, make sure your device meets the requirements for the latest version available. It may also be required while selling machine or replacing HDD.

What to Do Before Performing a Clean Install of Windows 10?

As the clean installation of Windows 10 removes the data from the primary drive, you are recommended to take a complete backup of your data to avoid inconvenience due to data loss. Use external storage media and cloud services for backup. It is suggested to keep your data on more than one place for safety point of view.

Confirm, if the copy of Windows 10 is activated on your system. Once the Windows gets activated successfully, you would not require entering the product key while performing Windows 10 clean installation. For this, navigate Settings > Update & Security > Activation and under the Windows section, check the activation of Windows 10.

System requirements for installing latest Windows 10

Before proceeding to upgrade Windows 7 or Windows 8.1 to Windows 10, make sure that your system meets the below given requirements for Windows 10 installation:

  • Processor: 1 GHz or faster processor or System on a Chip (SoC)
  • RAM: 1 GB for 32-bit or 2 GB for 64-bit
  • Storage: 16 GB for 32-bit OS 32 GB for 64-bit OS
  • Graphics card: DirectX 9 or later with WDDM 1.0 driver
  • Display: 800×600

How to Clean Install Windows 10

Step: 1 Download Windows 10 ISO. Here’s a complete guide.
Step: 2 Prepare bootable USB using Rufus.
Step: 3 Now connect USB to the intended PC
Step: 4 Restart your computer and press boot key (Esc, F2, F10 or F12) to enter BIOS. Configure the boot order using BIOS. Set it to be started from USB media with the Windows 10 installation files. Save the settings with F10. This will restart the computer automatically.

Step: 5 When prompt, press any key to boot from the USB.
Step: 6 Now “Windows Setup” will appear. Select “Language”, “Time & Currency format”, and “Keyboard or input method”. Afterwards, hit the Next button.

Windows setup: select language, time and currency format, keyboard


Step: 7 Click the Install now button.

Install now


Step: 8 On the next screen fill the Windows 10 product key (if you are installing Windows for the first time) otherwise click on the link “I don’t have a product key” as if you are going to reinstall Windows 10, your licence key must be saved digitally during successful activation of Windows. Hit the Next button.

Activate Windows 10

Step: 9 Choose the edition of Windows 10 and click the Next button.

Select edition of Windows 10 from the list


Step: 10 Select “I accept the license terms” to continue and click the Next button.

accept license terms


Step: 11 Choose “Custom: Install Windows only (Advanced)” to proceed for a clean installation.

custom: install Windows only

Step: 12 Select the partition with the current Windows installation. Usually “Drive 0” is used for the installation and click the Format button. Hit OK when prompts.

format drive with existing Windows data


Step: 13 Now select Drive 0 (empty drive) and hit Next button.

select drive for Windows 10 installation

That’s it. This process will install Windows 10 on your intended machine.

Windows 10 installation in progress

After completion of installation process, follow below given steps:

Step: 14 Select your Region. Click Yes button.

Select your region


Step: 15 If you want secondary keyboard layout, add it, otherwise hit the Skip button.

add second keyboard layout or skip it


Step: 16 Here you will be asked to Enter Microsoft account email. There are two options available, opt for a suitable one.

Option 1: Without Microsoft Account: Continue to follow until step 23.

Option 2: With Microsoft Account : Jump to step 24.


Step: 17 If you do not want to add Microsoft account, go back with the help of back arrow appearing on the left top corner of the window.

Step: 18 Disconnect your internet connection and go ahead.
Step: 19 Enter the name of Admin and hit Next button.

Enter admin name


Step: 20 Type the password and hit Next button. In case, you do not want to password protect your system, skip this by clicking on Next button directly.

create password


Step: 21 Now on the next window, you will be asked to enable or skip the access to activity history across devices. Choose No if you do not have another Windows device which you want to connect and access activity history.

access activity history across devices


Step: 22 Now select whether you want to get the help from your digital assistant Cortana to manage things, time and connect. You can choose to Accept or Decline.

Get help from digital assistant Cortana


Step: 23 Select your privacy settings and hit the Accept.

accept privacy settings

Continue steps for option 2 (With Microsoft Account)

Step: 24 Enter your Microsoft account email. Click the Next button.

Enter microsoft account email

Step: 25 Now Enter your Microsoft account password and hit the Next button.

enter microsoft account password

Step: 26 Click “Create PIN” button.

Hit Create PIN button


Step: 27 Enter four-digit Windows PIN. You can also skip the process of creating PIN and use your existing password instead.

set up Windows 10 PIN


Step: 28 Now on the next window, you will be asked to enable or skip the access to activity history across devices. Choose No if you do not have another Windows device which you want to connect and access activity history.

access activity history across devices

Step: 29 Now you can add a phone number on the next window. It’s optional so you can add and hit Send button to link your phone with your device or skip it by clicking “Do it later” link.

add phone number or hit

Step: 30 Click the Next button to allow OneDrive to backup Desktop data, Documents, and Pictures folders. Skip this option by clicking “Only save files to this PC”.

back up files with OnDrive ot only save files to this PC

Step: 31 Click “No, thanks” button to skip Microsoft 365 setup. You can also try this for free or use it with your existing Office product key.

Microsoft 365 trial offer

Step: 32 Now select whether you want to get the help from your digital assistant Cortana to manage things, time and connect. You can choose to Accept or Decline.

get help from digital assistant Cortana or decline it

Step: 33 Select your privacy settings and hit the Accept.

accept privacy settings

The fresh copy of Windows 10 is installed and ready to use. You can check Windows 10 cumulative update from the Settings and download & install the available updates.

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