You copy something on your phone, walk over to your PC, hit paste, and nothing shows up. Or you copy text on one Windows laptop expecting it on your desktop, and it just isn’t there. The toggle says sync is on. It clearly isn’t working.
Windows 11 clipboard sync not working almost always means one of two different features is broken, not one. Windows has a PC-to-PC clipboard sync tied to your Microsoft account. It also has a separate PC-to-Android clipboard sync that runs through Phone Link. Most troubleshooting guides treat them as the same feature with the same fix. They aren’t, and mixing up which one you’re actually dealing with is why a lot of standard advice doesn’t work.
Two Different Clipboards, Two Different Fixes
If you’re trying to copy something between two Windows PCs, that’s Windows’ built-in cloud clipboard. It’s controlled entirely through Settings and your Microsoft account. If you’re trying to copy something between your phone and your PC, that’s Phone Link instead — a completely separate app with its own sign-in, its own connection state, and its own failure points.
Windows 11 clipboard sync not working on the PC-to-PC side usually comes down to a settings mismatch. The Phone Link version, though, has turned up as a specific, currently unresolved bug on newer Windows builds — which is the part most guides skip entirely.
Fix 1: PC-to-PC — Check the Second Toggle, Not Just the First
The most common cause of Windows 11 clipboard sync not working between two Windows computers is a single missed setting. Turning on “Sync across your devices” isn’t enough by itself. A second toggle underneath it also has to be on, and it’s easy to miss since it isn’t obviously required.
How to fix:
- On both PCs, go to Settings > System > Clipboard
- Confirm Sync across your devices is turned on
- Below it, confirm Automatically sync text that I copy is also turned on — this is the toggle people skip
- Confirm both PCs are signed into the exact same Microsoft account — a personal and work account sharing the same email still count as different accounts
- Test by copying a short line of text and checking the other PC within a few seconds
Fix 2: PC-to-PC — Check Your Region and Any Work Policy
If both toggles are already on and it’s still not syncing, two less obvious blockers are worth ruling out before assuming something is broken.
How to check:
- Clipboard sync isn’t available in every region; confirm yours is supported before troubleshooting further
- On a work or school PC joined to Azure AD, an administrator can disable clipboard sync through policy — if you’re on a managed device, this is worth asking your IT department about directly
Fix 3: Phone Link (PC-to-Android) — Try the Standard Reset First
Windows 11 clipboard sync not working between your phone and PC through Phone Link has a different set of usual causes. It depends on an active Bluetooth and app connection, not just a Microsoft account setting.
How to fix:
- On your phone, open the Link to Windows app and confirm it shows as connected
- On your PC, open Phone Link and confirm your phone appears under Mobile devices
- If it doesn’t appear, unlink the phone from Phone Link’s settings and set up the connection again from scratch
- Sign out of your Microsoft account on both the phone and PC, then sign back in on both
- Restart both devices and reconnect
Fix 4: Phone Link — the Specific Bug on Newer Windows Builds
If the standard reset in Fix 3 doesn’t resolve it, you may be running into a genuine, currently unconfirmed bug rather than a settings problem. Users on Windows 11 build 25H2 have reported Phone Link’s clipboard sync failing with every setting correctly configured. Bluetooth is paired, the same Microsoft account is on both devices, and there’s no error message anywhere to explain why.
On Microsoft’s own Tech Community forum, one user reported that uninstalling a specific security update, KB5077181, restored clipboard syncing when nothing else had worked. Results have been inconsistent across different users. Microsoft hasn’t confirmed this as a known issue, but it’s worth trying once you’ve ruled out every normal cause.
How to try it:
- Go to Settings > Windows Update > Update history > Uninstall updates
- Look for KB5077181 in the list
- If present, uninstall it and restart your PC
- Reconnect Phone Link and test clipboard sync again
- If it works, hold off on reinstalling that update until Microsoft ships a fix — Windows Update will likely try to reinstall it automatically otherwise
Frequently Asked Questions
Is Windows 11 clipboard sync not working the same problem as Universal Clipboard not working on a Mac? No, though the symptom feels identical. Apple’s Universal Clipboard has its own separate set of causes tied to Handoff and Bluetooth, unrelated to Windows’ Microsoft-account-based sync or Phone Link.
Does the Phone Link clipboard bug affect every Windows 11 PC? No. It’s specifically been reported on build 25H2 and newer, not older Windows 11 versions, which is part of why it’s easy to mistake for a settings mistake rather than a build-specific bug.
Will uninstalling KB5077181 leave my PC less secure? Temporarily, yes, since it removes a security update. Only uninstall it if clipboard sync genuinely matters more to you right now than that specific patch, and reinstall it once Microsoft resolves the underlying clipboard issue.
Should I report this to Microsoft? Yes. Windows 11 clipboard sync not working is still unconfirmed as a known bug, so reporting it through the Feedback Hub app on Windows helps show how widespread the issue actually is.
The Bottom Line
Windows 11 clipboard sync not working usually comes down to figuring out which of two separate systems is actually failing. For PC-to-PC syncing, check both clipboard toggles, not just the first one, and confirm you’re on the same Microsoft account. For Phone Link’s PC-to-Android version, a full reconnect resolves most cases, but on build 25H2 and newer, a specific unconfirmed bug may require uninstalling KB5077181 as a temporary workaround. If Phone Link calls aren’t working either, the same underlying connection between your phone and PC is likely the root cause behind both problems.