OneDrive suddenly became empty after university storage policy change Is recovery still possible?
Hello everyone, I am looking for technical guidance regarding a serious OneDrive for Business issue under Microsoft 365 Education. Environment - Microsoft 365 Education tenant. - University-managed account. - OneDrive for Business. - My account is still active and I can sign in normally. What happened On July 16, 2026, I signed into my OneDrive and discovered that my entire "My files" folder was empty. I verified the following: - I am signed into the correct account. - "My files" is completely empty. - The OneDrive Recycle Bin is empty. - "Restore your OneDrive" does not show any mass deletion event. - My OneDrive site is accessible, but there are no files. - I unfortunately do not have a complete local backup. A few days later, my university informed students that they had reduced the OneDrive storage quota from 5 TB to 30 GB due to a Microsoft/provider policy update. I suspect my OneDrive contained more than 30 GB because I had stored backups from my previous computer together with years of academic, personal and work files. However, I would like to understand whether exceeding the new storage quota could actually cause an existing OneDrive site to appear completely empty, or whether this suggests another issue such as: - OneDrive reprovisioning - Site replacement - License reassignment - Site deletion - Storage migration - SharePoint issue - Other administrative problem The university initially described this as a temporary Microsoft incident, but later told me that the files had been deleted because of the OneDrive application, without providing any technical explanation. I have already asked the university IT department to investigate: - Deleted Sites in SharePoint Admin Center - Second-stage Recycle Bin - Retention policies - Previous OneDrive site - Licensing history - Possible restore options My question to Microsoft experts is: 1. Can a storage quota reduction (5 TB → 30 GB) ever make an existing OneDrive appear completely empty? 2. Are there other administrative scenarios that could produce this behavior while leaving the account active? 3. Is there anything specific I should ask my Microsoft 365 administrator to verify that is commonly overlooked? Any guidance would be greatly appreciated because these files represent several years of academic, professional and personal work. Thank you very much.
Metadata for .mov files radically different to originals
My iPhone's photos and videos are backed up to OneDrive. The files are al synced to my PC hard drive. I'm just clearing off some of the larger .mov files from my iPhone as a quick way to make space. I reconcile that they've definitely been backed up by finding the file on my PC. Only, when I'm doing this the videos aren't there! Thankfully, they are, but with completely different dates and timestamps. For example, a video I took at 0715 on 1 December 2025 shows on my PC as 2 December 2025 at 1458! This is a nightmare scenario. I've also tried Date Created, Date Modified and Date Taken (always blank for .mov files) but none accurately correspond with the correct date and timestamps on my iPhone. Has anyone else experienced this or found a work around?
Corrupted VT+ transaction files
We are a small accounting company using VT+ Transaction on a local drive synchronized with OneDrive for backup and file storage. A few days ago when we tried to open the application, we suddenly started receiving the following error messages: Run Time Error 0 and Run Time Error 440, and the program does not start. According to VT+ support the program files are corrupted and the data can only be restored up to the year 2022, as the more recent backups are also affected. Somehow the system is overriding our backups, which makes the latest ones unusable. Any advice what could cause that and how to resolve the issue. ThanksSynchronization issue with unknown files
Hello. I have synchronization issue with 2 uknown files since 2 years or so. During that period I've restarted synchronization once. It didn't help. The weight of files sometimes changes what suggests that those files are in constant use. I would have excluded them from synchronization, but I can't identify them. There is no place where I could have found the name and location of those files. Does anyone know, by any chance, where are any logs or how to enable them, if they are not enabled by default, to troubleshoot that? Thanks in advance for any help in that matter... and Happy New Year!!How does local OneDrive determine if a local file needs to be updated?
When using multiple computers to edit a OneDrive file, a computer often fails to recognize its local copy needs to be updated, even though the file on all computers is set to "Always keep on this device." This means changes are lost with no conflict error generated. Is the OneDrive algorithm for deciding when to update a local version of a file documented anywhere? Usually when a change is made to a file, it starts uploading to the cloud within seconds. Within several seconds after the changed file is uploaded, other computers will recognize their local copy is outdated and will begin downloading the changed version. That is the expected behavior. But often, that doesn't happen. The outdated version is used to make new changes. Those new changes are uploaded successfully. No conflict warning is generated. The earlier changes are lost forever. I have not found any documentation on how local Windows OneDrive decides if its local version of a file needs to be updated. Is it looking at file size? Timestamps? If timestamps, is there a margin of time sync differences? Does the OneDrive metadata include the source device of the last upload? Not knowing any of this I cannot troubleshoot the problem much beyond establishing that the problem is not with uploading changes. OneDrive local is reliably uploading changes. MD5 hash codes in the cloud match the hash of the changed file on the source computer. I don't have time to jump through hoops with someone at frontline Microsoft support who doesn't know any more about the algorithm than I know in order to get the issue escalated to someone with the information needed to pinpoint the issuse.
Face scan recognition limits?
I was a big fan of adding name tags in photos before, and was eager to have it back. Problem is, I have quite a large number of photos, and onedrive just stopped scanning, being very far from finishing the job. I mean, considering for example the pictures my spouse appears in, one drive started recognizing her in the most ancient photos quite nicely, but stopped somewhere in 2006, and than added just a dozen from the most recent pictures. Yes, I keep taking photos of her meanwhile. Unfortunately it didn't accept help from me, like hey look here, this is a face, and is the face of this person. Any idea if this is just temporary?Move files from Account A to Account B 165 GB data
I’ve been using Microsoft Office 365 Family for several years, sharing it with my family members. We have 6 accounts, each with 1 TB of storage. One of my accounts has now reached 985 GB, so I need to transfer files from Account A (my account) to Account B (my wife’s account). These files mainly consist of photos and videos — over 200,000 files in total. I tried transferring a 6 GB wedding shoot (.ISO format), but it took more than an hour. Re-downloading and uploading all the data isn’t feasible as my internet connectivity is limited to 100 mbps only. I’m looking for the best and most efficient way to move these files directly between OneDrive accounts.
Some Fabric Lakehouse tables not appearing in Microsoft Purview after scan
Hi everyone, I’m running into an issue where several tables from a Fabric Lakehouse aren’t appearing in Microsoft Purview after a workspace scan. Here’s the situation: I scanned a Fabric workspace that contains multiple Lakehouses. For most Lakehouses, the tables appear correctly in Purview after the scan. However, for one specific Lakehouse, several tables that I know exist aren’t showing up in the scanned assets — even after adding the Lakehouse as an asset to a data product in the Unified Catalog. What I’ve tried: I rescanned the workspace and the specific Lakehouses. I verified that the tables are persistent (not temporary) and appear under the Tables section in Fabric, not only as files. I confirmed permissions for the Purview connection account. Scan results and errors: After the rescan, the tables still didn’t appear. The scan logs show several ingestion errors with messages like: Failed to ingest asset with type fabric_lakehouse and qualified name [qualified name] due to invalid data payload to data map I checked the error entries to see which assets they point to, and none of them are related to the tables in the Lakehouse in question. There were four of these errors in the last run. Additional context: Some older Lakehouses that had been archived months ago in Fabric still appeared as active in Purview before the rescan, so there may be stale metadata being retained. Notes: I’m aware Fabric scanning in Purview currently has sub-item scanning limitations where item-level metadata is prioritised, and individual tables aren’t always picked up. But given that tables from other Lakehouses appear as expected, and given the ingestion errors (even though the errors do not point to the missing tables), it feels like there may be a metadata sync or processing issue rather than a simple coverage limitation. Question: Has anyone encountered this behaviour or the “invalid data payload to data map” error before? Any guidance on further troubleshooting steps would be appreciated. Thanks in advance!
