Error 0x80300002 is usually caused by partition errors or corrupted Windows installation media, so you will not be able to complete the Windows installation. Windows installation has been a simple task thanks to the Windows installer. Equipped with an easy-to-use interface, one can install your Windows DVD in no time. However, sometimes the process may require some work before you can get the newly installed Windows on your computer.
Windows Installer Errors Are Uncommon and Rarely Occur. Windows Installer related errors are usually caused by hardware connected to the computer, in which case the installer is not at fault, but the medium or hardware you use is the culprit.

What Causes Windows Installer Error 0x80300002?
Windows Installer errors don't happen every day, but when they happen, are generally due to:
- Damaged Windows installation media . If the media you use to install Windows on your system is corrupted, the error may appear.
- Wrong partition . If you have selected the wrong partition for Windows installation, it may tell you this error.
- Changes made before . If you have made changes to your old Windows before installing Windows, it can also cause the error to appear.
Having said that, use the following solutions to solve your problem:
Solution 1: disconnect any external hardware
The error can sometimes be caused by external hardware connected to your system. Some users have reported that their error was due to external hardware that was connected to their system and it was resolved once the hardware was disconnected. Therefore, to get started, make sure there is no additional hardware connected to your system, save your installation media.
Solution 2: Restore system
If you made any changes before reinstalling Windows, the error may be due to it. In that case, you will have to make use of System Restore. It is a Windows feature that allows users to restore their system to a point before the error occurred. Then, use System Restore and then try to install Windows. Here's how to restore the system:
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Open the start menu and go to Control Panel.
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Type Recovery in search and click on it.
Control Panel – Recovery
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There, select $ 0027 Restore open system $ 0027.
Restore system – Control Panel
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Select a point back then click Next.
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Follow the steps to restore your system.
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Try to install your Windows again.
Solution 3: delete partitions
Before continuing and implementing this solution, make sure you have backed up all important information stored on your system. The error can sometimes be caused by faulty partitions, in which case you will have to delete the partitions and then install Windows. Then, explains how to delete partitions:
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Go to the start menu and type $ 0027 Disk management $ 0027.
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Low Best match, $ 0027 Create and format hard drive partitions $ 0027 will appear in the list, the devil.
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This will open Windows Disk Management.
Windows Disk Management
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There, you will see your hard drives. Right click on the partitions and select $ 0027 Clear volume $ 0027.
Erase partitions for Windows installation
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Now insert your Windows installation media and follow the steps on the screen.
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Once you are prompted to select the partition where you want to install Windows, select Drive Options.
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Using unallocated space, create a new partition.
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Can do 2 partitions, one for your Windows (system partition) and the other as primary partition.
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Finish the installation.
Solution 4: connect the hard drive to another PC
Another thing you can do to solve the problem is to disconnect the hard drive from the system and connect it to another computer.. Besides the error, this is something to do if you can't see any partition when the system partition is requested. Once connected to a different system, configure NTFS partition with Windows Installer and then follow the installation process.
Solution 5: faulty hardware
By last, if the above solutions have not worked for you, there is only one possible reason for it. Something on your PC is damaged or damaged. In that case, you will have to replace the hardware and then try to install your Windows.
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Control Panel – Recovery
Restore system – Control Panel
Windows Disk Management
Erase partitions for Windows installation



