The "failed to run task sequence" error pops up when there is an issue with task sequence deployment using Microsoft Deployment Toolkit (MDT) or System Center Configuration Manager (SCCM). This problem is particularly related to not being able to locate a specific file or folder that is critical for the task sequence to run successfully.
Below, we take a look at the different troubleshooting methods you can try to resolve this issue once and for all.
1. Check Your Network Connectivity
When a task sequence initiates, it requires access to the content files and packages located on distribution points or network shares. If there is an issue with network connectivity, the client machine can have trouble accessing the required resources, leading to the problem at hand.

This is why, we recommend getting started by ensuring you have a stable internet connection. Verify that your connection is active and functional. If you have multiple connections available, you can try switching to a different one to see if that helps.
For detailed instructions on addressing internet connection problems, we recommend referring to our comprehensive guide on fixing various internet connection issues on Windows. Follow the steps outlined in the guide carefully and check if that makes any difference.
2. Verify the Task Sequence References
In some cases, the error can occur due to missing or incorrect references in the task sequence itself. Therefore, if network connectivity was not the problem, we suggest moving ahead with verifying the task sequence references.
Here is how you can proceed:
3. Format the Hard Drive

Several users also noticed that the issue was related to the partition style of the hard drives. Specifically, it was reported that the hard drives using Master Boot Record (MBR) partitions instead of GUID Partition Table (GPT) were encountering problems during the deployment process.
To check if this is the case in your scenario, determine the current partition style used by your hard drive. If it is set to MBR, we recommend manually formatting it to align the partition style with the deployment requirements.
Follow these steps to proceed:
DiskpartSelect disk 0CleanConvert gptCreate partition efi size=300Assign letter=v (replace with any letter you want)Format quick fs=FAT32Create partition msr size=128Create partition primary Assign letter=c (if C is not available, check whether you have a USB key mounted)Format quick fs=NTFSExit 4. Confirm the Availability of the Required Files
We also recommend ensuring that all necessary files for the deployment are present and accessible. This will resolve any content-related issues that might be contributing to the problem and deployment failures.
You can start by identifying and accessing the locations where the content files and packages for the Task Sequence deployment are stored. Here, look for all the specific content files and packages that are critical for task sequence deployment. Ensure all the files required are available.
If a file is missing, take the appropriate steps to restore it. This can involve updating the distribution point or distributing the content files.
Once you have confirmed the availability of all the essential files, try performing the action that was initially triggering the error and check if it appears again.
5. Convert UEFI Boot Mode to Legacy BIOS Boot Mode

Finally, you can try converting UEFI boot mode to Legacy BIOS boot mode, which will address any compatibility issues between the boot mode and the deployment environment that might be leading to the problem at hand.
Here is how you can do that:
Task Sequence Error Resolved
Hopefully, one of the methods listed above will help you fix the task sequence error 0x8007000f for good. If the error persists or reappears, you can consider resetting BIOS to its default state. This will fix any issues being caused due to the BIOS being corrupt.
Alternatively, you can also reach out to the official Microsoft support team and report the issue to them. They will be able to help you identify the exact cause of the problem and suggest a relevant fix.
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