like run Microsoft Outlook and set it as the default mail client.
In addition, incorrect Outlook registries and add-ins may also cause this error.
The first method you should try is to set Outlook as the default mail client.
Step 2: Under theEmailsection, press the app name likeMail.
Step 3: SelectOutlookas the default mail client.
Step 4: test whether the There is no default mail client error has been solved.
Is Outlook not saving drafts in Windows 10/11?
Now read this post to see how to find the disappeared Outlook draft emails and fix the issue.
Doing this is of key importance to prevent your system from working improperly.
Here is how to delete the Outlook registry key.
Step 1: PressWindows + Rkeyboard shortcut toopen the Run window.
Step 3: ChooseYesif a confirmation window pops up.
Step 4: InputComputer\HKEY_LOCAL_MACHINE\SOFTWARE\Clients\Mail\Microsoft Outlookin the registry path.
Step 5: Right-clickMicrosoft Outlookand selectDelete.
At this time, repairing Microsoft Office is an effective way to solve the issue.
Step 2: ClickGonext toCOM Add-ins.
Step 3: Uncheck theiCloud add-inandOutlook Change Notifierif they exist.
Step 4: ClickOKto save the changes and confirm if the mail client issue is solved.
According to the Internet, disabling Cortana is also one of the ways to solve mail client issues.
Step 1: PressWindows + Rand typeregeditin the box, and pressEnter.
Step 2: InputHKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windowsin the registry path and pressEnter.
Step 3: Right-click theWindowsfolder and selectNew>Key.
Set the values name to Windows Search.
Step 4: Right-click theWindows Searchfolder and selectNew>DWORD (32-bit) Value.
Step 5: Name it toAllowCortana.
Step 6: Double-click it to set theValue datato0.
What should we do to recover removed calendar and emails in Outlook?
This post shows some useful methods.
I believe you will find one that can help you.
