Fix Error Code 0x8030002F On Windows

El Error code 0x8030002F appears when you try to update Windows or when you try to install a fresh copy of Windows. This problem occurs when Windows believes that the ISO file you are using has been tampered with or modified by a third party.

Windows will prevent users from installing modified versions of Windows for security reasons. Using a non-genuine Windows image is definitely not recommended as it may be malicious.

After researching this particular issue thoroughly, it turns out that there are several causes that could be responsible for the appearance of this error code. Here is a list of possible culprits that could be responsible:

• The installation media is a modified version of WindowsThe number one cause that will trigger this error is a situation where the user is trying to upgrade to the latest version using a modified version of the Windows installation media. To resolve this issue, you will need to create a genuine copy of the installation media and use that instead.
• HDD Sectors / SSD damaged: It turns out that some kind of system file corruption can also trigger this error if the corruption affects the MBR or BCD files used during the update process. In this case, running a CHKDSK scan should allow you to resolve the issue.
• Configuration data for Boot damaged: If you only see this error when trying to update your version of Windows to the latest, you should try running a series of commands DCM elevated to prepare boot configuration data.
• System file corruption: Under certain circumstances, some kind of system file corruption can cause this error while trying to upgrade the Windows version to the latest one. If this scenario is applicable, you can perform a clean installation or you can try to repair the corrupted system files with SFC and DISM scans.

Methods to fix error code 0x8030002F

Now that you are familiar with all the possible culprits that could be responsible for this error, here is a list of possible solutions that other affected users have successfully used to resolve this error code:

1.- Install an unmodified version of Windows (if applicable)

One of the most common causes that can end up producing this error code is a situation where the user tries to install or upgrade their current version of Windows from a modified version of the installation media (DVD or flash drive).

You can expect to see the error 0x8030002f If you have a genuine version of Windows 7 and want to upgrade to the latest version of Windows 10 using a modified installation media. If this scenario is applicable and the installation media you are trying to use is not genuine, the only way forward is to make sure you are using genuine installation media.

If this scenario is not applicable to your particular situation, as the installation media you are using is genuine, please move on to the next potential solution described below.

2.- Implement a CHKDSK scan

If you're only seeing error 0x8030002f while trying to upgrade a previous version of Windows to Windows 10 using compatible installation media, then you're most likely dealing with some kind of HDD/SSD sector corruption that's affecting the MBR or BCD files.

In case you find yourself in this particular scenario, you should opt for a CHKDSK (Check Disk Scan) to make sure that no logical sectors are causing this behavior. If this is the source of the 0x8030002f error, CHKDSK will replace the damaged logical sectors with healthy, unused equivalents.

Nota: CHKDSK comes pre-installed on all recent versions of Windows, including Windows 7 and Windows 8.1

To implement this analysis, follow these instructions for implement a CHKDSK scan from a symbol of the system high.

Nota: If the utility discovers some bad sectors that cannot be replaced, you can conclude that the drive is failing and you should look for a replacement as soon as possible. If you have already performed a CHKDSK scan and the same type of problem is still occurring, feel free to try the next potential solution below.

3.- Run SFC and DISM scans

Please note that this 0x8030002f error is often associated with some sort of system file corruption, so your next step (if the first methods have failed) is to run a couple of built-in utilities that are capable of fixing the most common causes that will cause widespread system file corruption.

Running Scans SFC (System File Checker) y DISM (Deployment Image Servicing and Management) in quick succession should allow you to fix the vast majority of potential issues that could trigger this error code.

The two built-in utilities share some similarities, but we recommend running both types of scans in quick succession to maximize your chances of fixing the problem without having to perform a clean install or repair install.

You should start with an SFC scanThis scan will use a local file to replace corrupted Windows files with healthy equivalents; NO Internet connection required. 

Nota: After starting this operation, avoid closing the elevated CMD window or restarting/shutting down your computer. Doing so exposes your PC to the risk of additional local issues affecting your HDD/SSD.

Once the SFC scan is complete, restart your computer and start a DISM scan after your computer restarts.

Nota: Unlike an SFC scan, DISM requires a stable internet connection to replace corrupt files with healthy equivalents. This is necessary because instead of using a local archive file like SFC, DISM uses a subcomponent of Windows Update to download new copies that are not damaged by corruption.

Once the DISM scan is complete, reboot your computer one last time and see if the issue is fixed once the next startup is complete. If the same issue persists, feel free to try the next potential fix.

4.- Repair boot configuration data

If you are seeing this error when trying to update your Windows version to the latest one and all other possible fixes above have failed in your case, you should investigate whether there is a possible corruption that could be affecting the MBR files or Boot Configuration Data.

Use the utility Boot Configuration Data (BCD) to locate the Windows boot files on all disks and add them back to the boot list so that the boot sequence can locate them during startup. This solution is especially useful in situations where you have a dual boot.

Important: This method will require a supported installation media of Windows installation. In case you don't have one ready, you can Create Windows installation media from scratch and load it into a drive USB.

Once you have made sure you meet all the requirements, follow the instructions below:

• It starts simply by connecting the USB stick containing the installation media before starting your computer normally via the power button.
• Then access the key Configuration by pressing the corresponding button according to the manufacturer of your motherboard.

Nota: The setup key will be different from manufacturer to manufacturer. In most cases, the setup key will be setting is one of F keys (F2, F4, F6, F8) or the Esc key. In case you have problems accessing the menu Configuration, look online for specific instructions on how to access it.

• On the menu Configuration, go to the tab start and make sure to set the pen drive containing the installation media as the first boot option.

• Save changes and restart your computer to allow it to boot from the installation media.
• After successfully booting from the installation media, select repair your computer in the lower right corner of the screen.

• When the menu loads Recovery, access the menu Solve problems and click Symbol of the  work in the list of available options.

Nota: You can also start from the menu Recovery (without booting from installation media) forcing 3 consecutive system shutdowns during the boot procedure.

Next, type the following command and press Enter To fix MBR dependencies associated with your Windows installation: bootrec /fixmbr

After the first command has been processed successfully, type the following command and press Enter to correct the boot configuration data associated with your installation of Windows: bootrec / fixboot

After the FixBoot command is processed, type the following command and press Enter To scan all your disks for Windows installation media: bootrec /scanos

Nota: This operation may take more than 10 minutes, depending on the size of your partitions. Do not close this window until the operation is complete. 

Once the operation has completed successfully, type the following command to effectively rebuild the BCD configuration data: bootrec /rebuildbcd When prompted to confirm, go ahead and type Y before pressing Enter to confirm and start the operation.: Fixing Bootrec data

Finally, write salir and press ENTER to effectively exit the elevated CMD prompt. Repeat the Windows installation/update process that was previously causing the 0x8030002f error to see if the problem is now fixed.