By Ivy / Last update October 18, 2021

Offline files sync pending error

Honestly, for Windows Vista/XP/7/8/10 computer users, Offline files syncing pending is not new problem, but it’s still plagues many users just like the following case.

At the directions of my manager I reset the offline cache on a user Win7 laptop using the registry change. However, since reboot it has yet to rebuild the cache. If I try to manually start sync offline files, then it just sits there 'pending' and never gets any further. Does anyone know how to fix this? I'm going to continue digging but if anyone can light the way, that would be great!

Offline Files Sync Pending

Sync pending means that your file is in sync state, and the status will change after completion. And you need to check if all your files are synchronized successfully. But if your files are always in sync pending state, you need to fix it manually.

Offline files sync pending in Windows 10 – how to fix it

Now, let’s start to fix offline files sync pending error with given solutions below,

Method 1: Disconnect and reconnect your network drive

Syncing pending error may occur when your network drive is not connected well. Therefore, you can try to disconnect the drive and reconnect, then make all files always available offline.

Method 2: Make fully use user profiles

You can choose to logoff and logon user profile 3 times, or directly recreate user profiles. This method works when you encounter sync pending error after resetting the offline files cache using registry.

Method 3: Remove partnership and then add it back

Go to Sync Center and Manage offline files, click Disable offline files and click OK. Then, click Yes when you are asked to restart your computer.

Disable Offline Files

Then, clear CSC cache with the following command.


mkdir erasecsc

robocopy c:\erasecsc c:\windows\csc\v2.0.6\cache /mir

Erase Csc

Next, add registry entry with powershell.

reg add HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Csc\Parameters /v FormatDatabase /t REG_DWORD /d 1 /f

Add Csc Registry Entry

After that, restart your computer to make changes available and enable offline files again. Then, your will find that all of the previous sync partnership has been deleted.


At last, Add partnership to Sync Center. Map the network drive with all files need syncing to local computer, make all files available offline and it will start sync automatically.

Always Available Offline

Method 4: Force offline files sync command line

Run cmd as administrator, then type gpupdate/force and hit Enter to reinstall the group policy.

Force Offline Files Sync Command Line

Then, go to Sync Center, select the offline files folder and click Sync at the top.


Method 5: Force offline files sync folder properties

Go to the mapped network drive, select the folder always available offline and Properties, then click Offline Files tab and Sync Now.

Force Offline Files Sync Properties

Easier way to sync files in Windows 10

Now, you may already solve offline files sync pending error, but that’s just one of the error you may encounter. And you still other sync center not working issues, such as, enable offline files greyed out, always available offline missing, folder redirection offline files not syncing etc. If you don’t want to waste time to solve one problem after another, using a third-party trust and reliable file sync software AOMEI Backupper Standard can be a great choice. Here are some useful features of it.

  • Have a clean interface and user-friendly design, and suitable for all users even novice.

  • Compatible with all Windows operating system, including Windows 7/8/10/11/XP/Vista etc.

  • Support multiple sync storage, such as, local drive, external drive, network drive, cloud storage like OneDrive, NAS, and more.

  • Work well in automatic sync at a fixed interval, such as, daily, weekly, monthly.

Then, let’s have a closer look at how it works.

Step 1. Download AOMEI Backupper Standard, install and launch it. Then, click Sync and Basic Sync.

Download Freeware Win 11/10/8.1/8/7/XP
Secure Download

File Sync

Step 2. Click + Add folder > Share/NAS and select your files or folders on network drive. After that, click the folder shapped button to select a local drive as destination.

Add Network Folder

⊙ If this is the first time to sync network files, you need to add network location first. Click Add network location, type IP address, username, password and save the information.
⊙ If your computer is Windows 10, you can sync local folder with OneDrive. It comes along with Windows 10 and allows users to access anytime anywhere.

Step 3. To automatic backup your files, click Schedule and select your preference settings. The default setting is daily and you change to a longer interval if you think it's too short. Finally, click Start Sync.

Automatic Sync

⊙ Don’t modify the source folder name, otherwise the program will not sync files anymore.
⊙ AOMEI Backupper Standard currently is one-way file sync software, so only changes made in the source directory can be reflected in destination.
⊙ It’s suggested to use "Real-time sync" in AOMEI Backupper Professional if you work in a team, because it will monitor your files and sync any detected changes instantly.

Written in the end

That’s all for offline files sync pending in Windows. It’s one of syncing problems to sync files with Sync Center. But it is not the only one. Don’t want to use error-prone software and waste time to solve problems that may arise at any time? Free file sync software – AOMEI Backupper Standard can be a great alternative. It can do a big favor when you want to sync files in Windows Vista/XP/7/8/10, whether the destination is network drive, cloud storage, NAS or external disk.

In addition, it can do more for you, including mirror folder, real-time sync, file backup, system backup, disk backup, create bootable media, incremental/differential backup, explore image, universal restore etc. Some features are only available on the paid version, so please at least upgrade to AOMEI Backupper Professional first.