It’s not uncommon to run into Microsoft OneDrive sync issues on Windows 8.1 due to confusing nature of its settings. Moreover if you had a personal as well as business accounts, including activation of several devices, then the problems gets piled up more. Fortunately, troubleshooting OneDrive is easy and straight forward.
Before you proceed
There are few things you need to know about the OneDrive limitations and facts before you attempt troubleshooting it.
File Size limit: As of when this article is published, Microsoft OneDrive has a file size limit of 10GB, so make sure you are not trying to sync a file over this capacity. In such instances, you will get error such as “This file is too big to upload” or “Reduce the size of this file to upload it to…”.
File Name: You may never know, even file names and their length can cause sync problems. You can’t use certain characters for names of OneDrive files and folders, and if this is the case, you may receive following errors:
“This file name contains characters that aren’t allowed. Please change the file name so it doesn’t begin or end with a space, end with a period, or begin with two periods”
“This folder name contains characters that aren’t allowed. Please change the folder name so that it doesn’t begin or end with a space, end with a period, or begin with two periods”
File Path too long: I don’t think any body would ever have a file somewhere inside a borrow like for example C:\Users\<UserName>\Pictures\RAW\2015\January\Party\NewYears\Friends. And if you do then OneDrive sync is in trouble. The entire path, including the file name, must contain not more than 255 characters.
Deleted or Missing Files: Sync problems can occur due to missing files, someone authorized to use your account has deleted the files, or you yourselves deleted it accidentally. So make sure to check in OneDrive’s Recycle Bin.
Still no luck? Try OneDrive Troubleshooter and see if it can fix your sync problem.
Download and Run OneDrive Troubleshooter
If your OneDrive settings is messed up, OneDrive troubleshooter resets them to default settings and there is a high chance of your problem getting fixed.
If your problem isn’t resolved yet and you feel like sky is falling on your head, you may have to contact customer support and check with them.