OneDrive deleted local files and started syncing old files !

I have similar problems.

I don't even want OneDrive on my system. It pretty much acts like a virus. But since Microsoft is a quasi-monopoly, we're stuck with such garbage, I guess.

I recently had an issue with this as well, all my local files had gone completely missing and all I had was the OneDrive data from my last sync (which had been almost a year prior). Both OneDrive Support and Microsoft Support were of no help. I did manage to find some of the data in my Recycling Bin, which lead me to the data that I had lost! The path for me was in my C Drive-> Users ->(my profile name) -> OneDrive (which is a folder named OneDrive but not ACTUALLY connected to OneDrive). That's where my missing data was! I was missing my Documents folder and in that OneDrive folder my Documents folder was there with all my missing data! I hope this helps someone as this was a huge hassle for me and I had no help from Microsoft.

C:\Users(profilename)\OneDrive

After data recovery, make sure that OneDrive is no longer syncing your folders or anything for that matter in the OneDrive app, then delete OneDrive off of your desktop if you no longer intend to use it (just like I did). If anyone needs help figuring out how to stop OneDrive from auto syncing anything please let me know.

Microsoft, you need to fix this issue where data is moved when transferring OneDrive files to the local files. As you can see by this thread it's caused many issues for people who have seemingly lost their data and not been able to find it. This is detrimental for some people.

OneDrive is a mess. I've stopped using it due to loss of data, and strange, unreliable syncing. I use Dropbox instead, exclusively. Support for OneDrive is also lacking, to put it kindly. I regret having used the product.

This issue is actually a bad "feature" of OneDrive... In my experience, by design it will MERGE files in same-named local and cloud folders that are backed up when you use the same Microsoft Account across different computers. For example, if you use the Backup setting for your Desktop folder on computer #1, and later do the same process to a computer #2 (on your same Microsoft Account), OneDrive will MERGE the contents of both computers' Desktop folders into a single mega-combined Desktop folder - meaning that both computers will have each other's contents. This is a terrible design. This issue becomes compounded similarly with each additional computer that is added for OneDrive Backup using the same Microsoft Account!

By contrast, Dropbox's Backup syncing feature, which I now use instead, creates a unique folder structure for each computer for critical folders such as Desktop, Documents, Pictures, etc.

I'm in the process of undoing the big mess created by OneDrive for three of my computers - part of which involves creating external Macrium Reflect full backups to safely preserve my files, and subsequently "unlinking" and then completely uninstalliing OneDrive from each computer. OneDrive also caused data loss when I tried to interrupt a bad syncing process. 

As has been the case with several users in this overall thread, my experience was also that the OneDrive team would not carefully read my questions and their answers were usually unrelated to the issue at hand. This was frustrating and a waste of valuable time especially since there were delays in hearing back from the OneDrive team. There really needs to be phone support so that the troubleshooting can happen during a call or two, rather than spanning days via poor email support. 

In sum, for me, OneDrive is not a product I trust whatsoever to safeguard my data. There are much better solutions available from other vendors. This is too bad because I do much like many of Microsoft's other hardware and software products; however, OneDrive needs a serious overhaul.

{{ EDITED: 

I think I have found the problem and it was my mistake. The files were most likely not reverted at all and probably I had mistaken the files inside OneDrive with the one I'm working on which I put in other place because it is a copy with similar name. Therefore, I think this case is closed. I would like thank you guys for trying to help and would like to apologize for any inconvenience caused.

}}

Hi, I'm sorry to hear what happened to you. That sounds ridiculous and even more so when it happened to me two days ago.

I've been working on a file in onedrive for a year already, and two days ago, they magically reverted to a version from two months prior. That's two months of work gone just like that. I've contacted the support team and is still waiting for their reply.

In the mean time, have your problems solved and what steps did you take to solve it?

Regards.