OneDrive PDF and DOCX files missing since June 2026. Need technical support.

Hello,

I have a Microsoft 365 subscription and use OneDrive on a Dell XPS computer running Windows 11.

Since approximately June 2026, I have noticed that a significant number of files have disappeared from my OneDrive folders.

The issue is particularly concerning because:

• Many PDF and DOCX files have disappeared.

JPG image files in the same folders are still present.

The missing files were not found during my initial checks.

Fortunately, I have independent backups on my home NAS.

I previously contacted Microsoft Support about this issue, but I would like a more detailed technical investigation.

I would like Microsoft to investigate the following:

Can you check my OneDrive account logs for file deletions, unexpected moves, or synchronization errors since June 2026?

Is it possible to determine whether the files were deleted locally, in the cloud, or as a result of a synchronization problem?

Why would PDF and DOCX files disappear while JPG files in the same folders remain available?

Is there a way to perform a detailed integrity check of my OneDrive storage?

What measures can I take to prevent this from happening again?

Can this case be escalated to a OneDrive technical specialist if the first-level support team cannot identify the cause?

I do not want to simply reinstall or reset OneDrive without first understanding what happened.

I would prefer to continue using Microsoft 365 and OneDrive rather than move to another cloud provider, but I need to be confident that my files are stored and synchronized reliably.

Please provide a support case number and let me know whether a technical investigation is possible.

Thank you for your assistance.Hello,

I have a Microsoft 365 subscription and use OneDrive on a Dell XPS computer running Windows 11.

Since approximately June 2026, I have noticed that a significant number of files have disappeared from my OneDrive folders.

The issue is particularly concerning because:

Many PDF and DOCX files have disappeared.

JPG image files in the same folders are still present.

The missing files were not found during my initial checks.

Fortunately, I have independent backups on my home NAS.

I previously contacted Microsoft Support about this issue, but I would like a more detailed technical investigation.

I would like Microsoft to investigate the following:

Can you check my OneDrive account logs for file deletions, unexpected moves, or synchronization errors since June 2026?

Is it possible to determine whether the files were deleted locally, in the cloud, or as a result of a synchronization problem?

Why would PDF and DOCX files disappear while JPG files in the same folders remain available?

Is there a way to perform a detailed integrity check of my OneDrive storage?

What measures can I take to prevent this from happening again?

Can this case be escalated to a OneDrive technical specialist if the first-level support team cannot identify the cause?

I do not want to simply reinstall or reset OneDrive without first understanding what happened.

I would prefer to continue using Microsoft 365 and OneDrive rather than move to another cloud provider, but I need to be confident that my files are stored and synchronized reliably.

Please provide a support case number and let me know whether a technical investigation is possible.

Thank you for your assistance.