OneDrive Support Ending on Windows 10: What Businesses Need to Check

Microsoft is changing OneDrive support on Windows 10, and the most important thing for businesses to understand is this:

OneDrive support has not ended for every Windows 10 PC at the same time.

As of 15 August 2026, Microsoft has ended support for the OneDrive desktop app on devices running Windows 10 version 21H2 and earlier. Microsoft states that the app may continue to function for a period of time, but those older versions no longer receive normal OneDrive support and updates.

Devices running Windows 10 22H2 are in a different position. They continue to receive OneDrive sync app updates for longer while organisations complete their move away from Windows 10.

That distinction matters.

If your business still has Windows 10 devices in use, now is the time to check exactly which versions you are running, which machines depend heavily on OneDrive, and whether those devices should be upgraded or replaced.

What Exactly Is Changing?

Microsoft continually updates the OneDrive sync application to improve security, reliability, compatibility and functionality.

From 15 August 2026, Windows 10 devices running version 21H2 and earlier no longer meet Microsoft’s current supported requirements for receiving those OneDrive desktop app updates.

Microsoft’s current OneDrive system requirements specifically state that support for OneDrive desktop apps running on Windows 10 21H2 and earlier ended on 15 August 2026.

That does not necessarily mean OneDrive instantly stops synchronising on every affected computer.

It means those devices are now outside the supported OneDrive environment.

Over time, that can lead to:

• missing security fixes
• compatibility problems
• sync errors
• reliability issues
• newer OneDrive features becoming unavailable
• reduced support options if something goes wrong

For a business storing important files in OneDrive or SharePoint, that should not be ignored.

What About Windows 10 22H2?

This is where some of the confusion comes from.

Windows 10 22H2 is the final mainstream Windows 10 release and is treated differently from older versions for some Microsoft 365 components.

OneDrive updates on Windows 10 22H2 continue beyond August 2026.

However, this should not be taken to mean that Windows 10 itself is fully supported.

Microsoft ended general support for Windows 10 on 14 October 2025.

Microsoft has continued providing certain Microsoft 365 security updates on Windows 10 during the transition period, with that extended security support scheduled to continue until 10 October 2028.

That gives organisations breathing room.

It should not become an excuse to leave Windows 10 devices in production indefinitely.

Windows 10 Has Already Reached End of Support

This is the bigger issue.

Windows 10 reached its official end of support on 14 October 2025.

That means standard Windows 10 installations no longer receive the normal free stream of operating system security updates, feature updates and general Microsoft technical support.

Businesses may have access to Extended Security Updates in some circumstances, but ESU should be viewed as a temporary bridge rather than a permanent solution.

If a device is still running Windows 10 in 2026, it should already be on an upgrade or replacement plan.

The OneDrive change simply makes that migration more urgent for businesses using older Windows 10 releases.

How Do I Check Which Version of Windows 10 I Have?

The first thing to do is identify which version each Windows 10 device is running.

On an individual computer:

1. Press Windows key + R
2. Type winver
3. Press Enter

A window will appear showing the Windows version and build.

You can also check through:

Settings > System > About

If the machine is running Windows 10 21H2 or earlier, it should be treated as a priority.

If you manage dozens or hundreds of devices, checking them manually is not realistic.

Modern device-management platforms such as Microsoft Intune, RMM tools or endpoint-management systems can provide an inventory showing:

• operating system version
• build number
• device age
• patch status
• hardware specification
• encryption status
• last check-in time

That allows the business to see immediately which machines require attention.

Can I Just Upgrade Windows 10?

Possibly.

Some Windows 10 devices can be moved directly to Windows 11.

The main requirements include:

• a compatible 64-bit processor
• TPM 2.0
• Secure Boot capability
• sufficient RAM
• sufficient storage
• supported graphics hardware

One of the biggest challenges businesses encounter is older hardware that does not meet Windows 11 requirements.

In that situation, replacing the computer is usually the better long-term option.

Trying to bypass Windows 11 hardware requirements on business-critical devices can create support and security problems later.

Before Upgrading, Check the Hardware

The decision should not be based only on whether Windows 11 can technically install.

A machine might technically meet the requirements but still be approaching the end of its useful life.

Look at:

• processor generation
• RAM
• SSD capacity
• battery health
• warranty status
• overall device age
• user workload
• application requirements

If a laptop is already five or six years old and struggling with normal workloads, spending time migrating it to Windows 11 may simply delay an inevitable replacement.

In many cases, replacing the device provides better value than extending an ageing machine for another year.

Check Whether OneDrive Is Actually Syncing

Before performing any upgrade or replacement, confirm that OneDrive is healthy.

Look at the OneDrive cloud icon in the Windows notification area.

Common warning signs include:

• red crosses
• paused syncing
• "sign in" requests
• files permanently stuck on syncing
• insufficient disk space
• conflicting files
• folders showing unexpected status icons

A user may assume everything in their Documents folder is protected simply because OneDrive is installed.

That is not necessarily true.

Files may have failed to sync weeks or months earlier.

Check OneDrive Known Folder Backup

Many businesses use OneDrive Known Folder Backup to protect:

• Desktop
• Documents
• Pictures

This can be extremely useful when replacing a computer because the user's files can follow them to the new device.

But it needs to be checked.

Before retiring a Windows 10 machine, confirm:

• OneDrive is signed in with the correct business account
• Desktop backup is enabled if required
• Documents backup is enabled
• all files have completed syncing
• no sync errors remain
• important files are visible in OneDrive online

Do not assume that a blue cloud icon means every file is safely stored in Microsoft 365.

OneDrive Is Not the Same as a Backup

This is also a good time to address a common misconception.

OneDrive provides file synchronisation, versioning and some recovery capabilities.

It should not automatically be treated as a complete business backup strategy.

If a file is deleted, corrupted or encrypted by ransomware, that change may also synchronise.

Microsoft 365 contains useful recovery features, but organisations that depend heavily on Microsoft 365 should consider whether they also need a separate backup service.

That decision should be based on:

• recovery objectives
• retention requirements
• regulatory obligations
• ransomware risk
• business continuity requirements
• how long deleted information needs to remain recoverable

Check Microsoft 365 Apps Too

OneDrive is only part of the Windows 10 retirement story.

Businesses should also check Microsoft 365 applications such as:

• Outlook
• Word
• Excel
• PowerPoint
• Teams
• OneNote

Microsoft has confirmed that Microsoft 365 Apps may continue running on Windows 10 after the operating system's end of support, but it recommends moving to Windows 11 to avoid growing reliability and compatibility problems.

Microsoft is also continuing certain security updates for Microsoft 365 Apps on Windows 10 until October 2028.

Again, that transition window should be used to migrate.

It should not become the long-term plan.

Check Your Line-of-Business Applications

A Windows migration can affect much more than Microsoft software.

Before upgrading or replacing computers, identify any specialist applications the business relies upon.

Examples might include:

• accounting software
• practice-management systems
• CAD applications
• manufacturing software
• payroll systems
• CRM clients
• VPN software
• specialist printer drivers
• document-management software
• legacy databases

Confirm that these applications support Windows 11.

This is particularly important for older line-of-business software that may have been installed many years ago and never formally reviewed.

Do Not Forget Shared Drives and SharePoint

Users often blur the distinction between OneDrive and SharePoint.

OneDrive is primarily designed for an individual's work files.

SharePoint is generally better suited to shared departmental and organisational content.

If employees are storing important shared company files inside one person's OneDrive because "that's how we've always done it", a Windows 10 migration is a good opportunity to correct that.

Ask:

• Who owns the data?
• Who needs access?
• What happens if the user leaves?
• Should the files actually be in SharePoint?
• Are permissions still appropriate?

A device replacement project can uncover years of poor file-management habits.

What About Remote Workers?

Remote workers need particular attention.

A laptop may not have connected to the office network for months.

That can mean:

• old Windows versions
• missing patches
• outdated OneDrive clients
• low disk space
• failed security agents
• stale VPN software
• users delaying restarts indefinitely

Cloud-based management makes this easier.

Microsoft Intune and other remote-management tools can help businesses identify Windows versions and manage upgrades without waiting for the laptop to physically return to the office.

What Should Businesses Do Now?

A sensible process is:

1. Create a Device Inventory

Identify every Windows 10 machine still in use.

2. Check the Windows Version

Prioritise devices running Windows 10 21H2 or earlier.

3. Check Hardware Compatibility

Determine which devices can reliably support Windows 11.

4. Identify Replacement Devices

Plan replacement of older or incompatible hardware.

5. Check OneDrive Health

Confirm files are synchronising properly before migration.

6. Review Business Applications

Make sure critical software works on Windows 11.

7. Review File Locations

Move shared business information into appropriate SharePoint locations where necessary.

8. Test the Migration

Pilot Windows 11 with a small number of representative users before a large rollout.

9. Replace or Upgrade in Stages

Avoid trying to migrate the entire business in one day unless there is a compelling reason.

10. Remove Old Devices Properly

Once the migration is complete, make sure retired machines are securely wiped and removed from Microsoft 365, Intune, endpoint security and other management platforms.

What If OneDrive Stops Syncing?

If OneDrive is not syncing properly, check:

• internet connectivity
• whether OneDrive is signed in
• available disk space
• Windows version
• OneDrive client version
• file and folder names
• excessive path lengths
• account licensing
• SharePoint or OneDrive storage limits

Restarting OneDrive can resolve some temporary problems, but recurring errors should be investigated rather than repeatedly ignored.

If the device is running an unsupported Windows version, upgrading the operating system may become part of the fix.

Do Not Wait Until a User Cannot Access Their Files

The worst time to discover that an employee's laptop is unsupported is when they urgently need access to a customer document five minutes before a meeting.

Windows 10 retirement should be treated as a planned IT lifecycle project.

Businesses should know:

• how many Windows 10 devices remain
• which Windows versions they are running
• whether OneDrive is healthy
• which devices support Windows 11
• which need replacing
• whether specialist software is compatible
• how long the migration will realistically take

If you cannot answer those questions, that is the first issue to fix.

How Hamilton Group Can Help

Hamilton Group can help businesses identify Windows 10 devices, check Windows 11 compatibility and create a structured migration plan.

We can also review:

• OneDrive synchronisation
• SharePoint file structures
• Microsoft 365 configuration
• device management
• Microsoft Intune
• endpoint security
• Windows patching
• hardware replacement schedules
• Microsoft 365 backup requirements

The goal is not simply to "get rid of Windows 10".

It is to move users onto a supported, secure and properly managed platform without losing files or disrupting the business.

If you still have Windows 10 PCs in your organisation, now is the time to find out exactly what you have rather than waiting for applications to stop behaving properly.

Visit hgmssp.com or call 0330 043 0069 to speak with Hamilton Group about your Windows 10 and Windows 11 migration.