banner image

EaseUS Todo Backup

  • Easy Backup, Sycn and Clone in Windows 11/10/8.1/7.
  • Fully Support Windows 11 System Backup and Restore.
  • Easily Rollback to Windows 10 from Windows 11 after 10 days.
  • Successfully Restore Windows 11 to Even Unsupported PCs.
  Free Download

Support Windows 11/10/8/7

100% Secure

Why Is OneDrive Not Syncing on Windows PC? Answers and Fixes Are Here!

Updated by Gemma on Nov 29, 2021
Written by Tracy King

OneDrive, a professional cloud storage service provider, owns a huge number of users, including personal and business users, around the world.

OneDrive is not syncing error

While enjoying the convenient storage services provided by OneDrive, many users also come across many problems. One of the issues is OneDrive not syncing. If you are having the same issue, follow the respective guide and fix the OneDrive not syncing error on Windows computers now.

Causes - Why Is OneDrive Not Syncing

Accordingly, many reasons may block your OneDrive from syncing files between your device and the cloud. Here is a list of common causes that'll explain why is OneDrive not syncing your files:

  • OneDrive Sync Error 
  • OneDrive displaying with Red "X" sync error
  • OneDrive processing changes
  • OneDrive paused
  • OneDrive account nearly full
  • OneDrive account full, blocked, or frozen 
  • OneDrive not signed in

If the OneDrive syncing error that you are having is not included in the list, check the specific OneDrive sync error and get official help from Microsoft here. 

Let's get started to fix OneDrive syncing error on your own now.

How Do I Fix OneDrive Not Syncing on Windows 10/8/7 [8 Fixes Available]

In this part, you'll learn some tips that will make sure that OneDrive is running correctly so that you can access and sync files. Also, remember to try the quick fixes first.

Quick Fixes for OneDrive Not Syncing Detailed Steps
1. Check if You Can Access OneDrive Online
  • Check: Click OneDrive icon on PC > Help & Settings > Settings > View online.
  • If not, check the status of Microsoft Office OnlineServices at the Service Health portal
2. Update OneDrive to the Latest Version 
  • Download the latest version of OneDrive and install it. 
  • Press Windows + S to search for OneDrive, click to open the OneDrive desktop app.
  • Sign in with your Microsoft account email address and set up the account.
3. Upgrade OneDrive Account Storage
  • Buy more storage.
  • Download files to backup, and delete them from the OneDrive account. 
  • Reduce files to sync.
4. Unlink OneDrive & Run OneDrive Setup Again
  • Click OneDrive icon, select "Help & Settings > Settings".
  • Click "Unlink this PC".
  • Set up OneDrive with the steps in the Welcome to OneDrive wizard.

After trying the fixes above, if OneDrive works in syncing files again, stop here. If nothing worked, move to follow the tutorial guide below and let it help.

Fix 1. Move Files Out of the Sync Folder

Step 1. Click OneDrive icon and select "Help & Settings" > "Settings".

Open OneDrive settings

Step 2. Click "Pause syncing..." and select "2 hours".

Pause OneDrive sync

Step 3. Select a file from the sync folder and move it to another folder, such as C:\users\.

Step 4. Select "Help & Settings" > "Resume syncing...".

When the syncing process completes, move the file back to its original location again.

Fix 2. Check & Make Sure Filenames and file types are supported

Note that OneDrive won't work when the target file exceeds its constraints in file size and file names. So check if the files that you need to sync don't contain one of the following features:

  • File is larger than 20GB.
  • File name and its entire path are more than 400 characters.
  • File contains illegal or characters, like <, >, :, ", |, ?, *, /, \.

So how to fix this error? Here are the steps:

Step 1. Reduce the size of the file that you need to sync by zipping or compressing it.

Step 2. Shorten the file name or save the file in a subfolder that is closer to the top-level folder.

Step 3. Rename the file and remove illegal characters, set the file in a normal file extension.

Fix 3. Turn Off Necessary Components - Office Upload, Proxy Settings, Antivirus, and Firewall

#1. Turn Off Office Upload

Step 1. Click OneDrive icon, select "Help & Settings" > "Settings".

Step 2. Go to the Office tab, uncheck "Use Office applications to sync Office files that I open" or "Use Office 2016 to sync Office files that I open". 

Step 3. Click "OK" to confirm.

Turn off onedrive upload

#2. Turn Off Proxy Settings - Temporarily

In Microsoft Edge:

  • Click the Windows icon and select the Settings icon.
  • Click "Network & Internet" > "Proxy".
  • At the Automatic proxy setup section, slide "Automatically detect settings" and "Use setup script" to its opposite side: On to Off, or Off to On.
  • At the Manual proxy setup section, slide "Use a proxy server" to its opposite side: On to Off, or Off to On.

Turn off Proxy settings

In Internet Explorer 11/10/9/8/7:

In IE, click "Tools" > "Internet Options" > "Connections" > "LAN settings" > Uncheck or clear "Use a proxy server for your LAN" > "Apply" and "OK".

#3. Turn Off Antivirus or Firewall - Temporarily

Step 1. Click the Windows Start icon > "Settings" > "Update & Security".

Step 2. Select Update Security > Open Windows Defender Security Center.

Step 3. Select to disable or turn off "Virus & threat protection" and "Firewall & network protection". 

Turn off antivirus and firewall

Fix 4. Reset OneDrive

  • Press Windows + R keys, and type this path in the Run dialog, and hit Enter:

%localappdata%\Microsoft\OneDrive\onedrive.exe /reset 

  • If you see the "Windows cannot find..." message, type this path in the Run dialog instead: C:\Program Files (x86)\Microsoft OneDrive\onedrive.exe /reset
  • If this doesn't work, you can reinstall or update Office to fix OneDrive not syncing error.

Extended: OneDrive Sync vs OneDrive Backup, Which Is Better?

As you know that OneDrive is a cloud storage service that makes sharing and editing files anytime and anywhere. Besides file syncing, OneDrive also works as a terminal for local computer file backup. 

So what's the difference between OneDrive Sync and OneDrive Backup? Which is better? When to use file syncing and when to use file backup? Check the answers here.

Which Is Better OneDrive Sync OneDrive Backup
  • Sync files and folders immediately across different devices.
  • Free up local hard drive space.
  • Sharing files, work with colleagues anytime and anywhere.
  • Real-time collaboration with Office applications.
  • Free up local hard drive space
  • Back up all types of files to OneDrive, including Documents, Downloads, Desktop, everything on the computer, even include the OS.
  • File deletion on a local disk won't remove the backup.
  • File backup takes smaller space than file syncing with professional file backup software
  • More secure than file syncing.
  • File syncing takes huge space on OneDrive, the account gets full easily.
  • Deleting a file or folder inside the OneDrive folder on PC will also delete it online. 
  • OneDrive only sync files that were saved inside the OneDrive folder. OneDrive cannot sync Documents, Pictures, or Desktop folders. 
  • Slower than file syncing.

So which is better, and when to use OneDrive sync or OneDrive backup? According to the comparison, as shown above, you may have answers. And here is Editor's suggestions, hopefully, it will be helpful to you:

  • To quickly share files with your colleagues, friends, or families, OneDrive Sync is better.
  • To free up space on your local computer disk, back up all valuable files, use OneDrive backup.

So how to securely back up files to OneDrive? Check this out.

Bonus Tip: How Do I Backup Files to OneDrive Instead of Syncing? Your Reliable Tool Is Here

When it comes to backup files to OneDrive, you have two options: 

  1. 1. Manually upload files to OneDrive one by one.
  2. 2. Back up all files to OneDrive at one time. 

If you prefer the manual way, follow Microsoft to upload and save files to OneDrive. But if you prefer an all-in-one backup tool, EaseUS file backup software - Todo Backup is here to help.

  Free Download

Support Windows 11/10/8/7

With it, you can back up anything on your computer drive to OneDrive. If you ever feel like backup your current OS to OneDrive, the workstation version of EaseUS Todo Backup can help.

Let's see how to fully backup all data on your computer to OneDrive one time:

Step 1. For the first time you use EaseUS Todo Backup to back up files, click Create backup on the home screen and then mouse click the big question mark to select backup contents.

backup files step 1

Step 2. Since you're going to back up files and folders on your computer, go on with the "File" backup mode, where you can select pictures, videos, documents and all other types of files to back up.

backup files step 2

Step 3. Follow the paths to locate the files, folders or directories you want to back up, select them all and click "OK".

backup files step 3

Step 4. Now you need to select a backup location to save and retain the backup.

backup files step 3

Step 5. EaseUS Todo Backup allows users to save the backup files to every device that is handy for you, like a local hard drive, external USB drive, SD card, network drive, or a NAS drive, plus a cloud drive of the EaseUS brand. We personally recommend users to choose the cloud drive prior to a pysical drive to save important backups due to the greater accessibility, flexibility and safety.

backup files step 5

To be able to access to EaseUS cloud, all you need is an email registration and login. 

backup files to cloud

Step 6. If you're interested in an automatic and intelligent backup schedule for the next file backup task, go on with the "Options" setting. There you can encypt a confidential file backup, compress the backup image size, or customize a backup scheme to tell the software in what time to start the next backup. 

Customize an advanced and automatic backup task here:

backup scheme

Click "Backup Now" to start the file backup process. Your completed backup files are visible on the left area in a card style.

backup files step 6

Don't Worry When OneDrive Is Not Syncing Files, Follow to Fix It Now

On this page, we collected all possible reasons that may block OneDrive from syncing files on your computer. And we also collected 8 fixes to help you resolve this issue, making OneDrive sync files again.

However, there is one thing that you cannot ignore that OneDrive sync has its constraints that you can't expect using this feature to backup and protect your local computer data. If you need a OneDrive file backup solution, it's wise that you turn to reliable backup software. Here, EaseUS Todo Backup with its file backup to OneDrive feature is countable.

  Free Download

Support Windows 11/10/8/7

Was This Page Helpful?

Updated by Gemma

Gemma is member of EaseUS team and has been committed to creating valuable content in fields about file recovery, partition management, and data backup etc for many years. She loves to help users solve various types of computer related issues.

Read full bio

Written by Tracy King

Tracy joined in EaseUS in 2013 and has been working with EaseUS content team for over 7 years. Being enthusiastic in computing and technology, she writes tech how-to articles and share technical solutions about Windows & Mac data recovery, file/system backup and recovery, partition management and iOS/Android data recovery.

Read full bio

Product Reviews

TrustScore 4.7 | 47 reviews
  • Taking everything into consideration, we can say that EaseUS Todo Backup Home can offer you a little extra sense of security with a set of advanced tools. The interface provides quick adaptation, every process guiding you all the way through so you don't get stuck or further damage your system rather than keeping it safe.

    Read More
  • EaseUS Todo Backup Free lets you create backups of your important files or your entire computer through its streamlined interface. Just choose the backup type you'd like to get started, and let the program do the reset.

    Read More
  • EaseUS includes all the features I expect from backup software like versioning, incremental backups, and scheduling. For more advanced users, EaseUS allows you to install a pre-boot environment onto your hard drive so you can use it to restore files without burning a CD or putting it on an external USB drive.

    Read More


EaseUS Todo Backup

Smart backup tool for your files and entire computer in Windows 10/8/7.

Product Reviews

Install Windows on Multiple Computers at Once? No Problem!

Learn how to install Windows 11/10/7 and special programs/software on a batch of computers. Use 10 minutes to do the 10 hours work without making a single mistake!

Get Free Solution!