Fix : Windows 8 upgrade / clean installation fails

This post will help you fix an issue where the upgrade to Windows 8 or even a clean installation of Windows 8 fails with or without error.Your Windows 8 installation might fail with error : Windows 8 Installation has failed. This can happen due to a number of reasons. Some of the possible solutions are mentioned herein that might help you solve this issue.

Scenario 1

Windows 8 Upgrade from previous Windows versions

Method 1 : Update Readiness Tool

  • The first step should be to run the Windows 8 Update readiness tool. Click here to download . This will check if there are any update errors in your system and will fix them. This is one of the pre-installation steps that ensure a cleaner and stable windows 8 installation.

Method 2 : Security Software

  • If you have any antivirus software installed in your system, if it advisable to either uninstall it or disable it for the time being. Note: make sure you save your Antivirus ( security software) activation information for future installation.

Method 3 : Clear your Temp folder:

  • To do this, Go to run ( Windows logo key + R)
  • Type in %temp% and press Enter
  • Select all the files and folder inside the temp folder ( CTRL + A ) & Press Delete

Method 4: Hardware clean boot

  • Go to the Device Manager ( Control Panel )
  • Expand Display
  • Right Click on your display adapter and click on disable


  • Now, Do the same with your sound adapter & any network adapter installed in your system.


  • Restart your computer and try installing Windows 8.

Method 5 : If the installation still fails:

  • Perform a Software clean boot Click here to read the guide

Random Tips:

  • Make sure you are using only one user account and no other account is logged on.
  • You can also choose to delete other user accounts that you might not be using.
  • Make sure your Computer updated fully. Run Windows Update to check.
  • Remove any non-essential hardware devices attached to your computer ( Printer, scanner, external hard disk etc.)
  • Make sure you have adequate hard disk space to upgrade to Windows 8
  • Make sure you have enough RAM.

Scenario 2 : Clean Install of Windows

Check the Minimum requirements for Installing Windows 8

  • Processor: 1 GHz or faster processor
  • RAM: 1 GB (32-bit) |  2 GB (64-bit)
  • Hard disk space: 16 GB (32-bit) | 20 GB (64-bit)
  • Graphics card: Microsoft DirectX 9 graphics device with WDDM driver

Check if your computer is Windows 8 Compatible

  • Go to your Computer Manufacturer’s support website and check if the computer your are installing Windows 8 on is Windows 8 compatible or not.

Random Tips:

  • Make sure the Media ( DVD / USB ) is working correctly
  • Check your Hard disk drive for errors ( if this is a old hard disk drive and has partitions, it is advisable that you backup your data and delete all current partitions and creates new ones for Installing Windows 8 )
  • If this is a laptop, Check and make sure you install Windows with Power Adapter plugged in
  • If this is a desktop, check your SMPS ( PSU ) unit.

If the Windows 8 Installation still fails, you can use the comment section to notify me & I’ll try to solve your problem.