PickerHost.exe

Windows ProcessMicrosoft Corporation

Also called pickerhost, file picker, open file picker

WindowsSystem Component

File and folder picker host. Packaged apps open this instead of a raw GetOpenFileName dialog. It is not explorer.exe.

What you need to know

This is the modern file picker, not a second File Explorer window.

PickerHost.exe hosts the Open / Save picker for packaged apps. Ending it cancels that dialog. Your folder windows stay in explorer.exe.

Safe?: Yes. An app opened a file picker
Is it Explorer?: No. Explorer is the desktop shell
Should I end it?: The Open dialog closes

Feex says

If an Open dialog is up and PickerHost is the name, I would pick a file or press Esc. Ending explorer.exe would also kill the taskbar, which is the wrong hammer.

What is PickerHost.exe?

PickerHost.exe is the Windows file and folder picker host.

What does it do?

It shows a system Open or Save UI and returns a StorageFile to the app. It does not browse your desktop icons.

Why is it running?

A Store or packaged app called the picker. A leftover after you already chose a file is a stuck dialog.

Is it safe?

Usually safe

System32 PickerHost is Microsoft. A picker exe in a crack is not the system dialog.

A legitimate copy normally runs from:

C:\Windows\System32\PickerHost.exe

Open/Save picker
Not explorer.exe
Not OpenWith.exe

Can I end it?

Cancels the dialog

Ending PickerHost.exe is the same as Cancel on the Open or Save dialog. The calling app stays open. explorer.exe folder windows stay up.

Can I remove it?

Do not delete PickerHost.exe. Packaged apps lose the system file picker. This is not explorer.exe and not a leftover to clean.

Should it start with Windows?

On demand. Not Startup Apps.

Normal resource behavior

These are contextual labels, not universal averages.

CPU: Low
Memory: Grows in a huge folder
Disk: Enumeration
Network: If you pick a cloud location

File information

PickerHost.exe file information
Executable name	PickerHost.exe
Common legitimate path	C:\Windows\System32\PickerHost.exe
Publisher	Microsoft Corporation
Signature expectation	Signed by Microsoft Windows

Common problems

Picker frozen on a network path

End the host, then pick a local folder. Explorer issues are a different process.

Two Explorer-looking windows

One may be this picker. Check the image name.

Troubleshooting

Diagnose before you change anything destructive.

Esc, then retry a simpler folder

Cloud placeholders can hang pickers.

Do not replace PickerHost

System file.

Technical details

PickerHost.exe technical details
Image name	PickerHost.exe
Role	File picker host

Sources and verification

Reviewed by Feex editorial. Last verified August 2026 Status: Feex Reviewed. How we research.

Microsoft Learn: file picker · Picker APIs
Microsoft Learn: Windows · Primary Windows documentation
Foxhole process map · First-party samples on Windows PCs. Not a lab benchmark.

Was this article useful?

A yes or no is enough. Pick a reason if you want, or add a short note.