SearchHost.exe

Windows ProcessMicrosoft Corporation

Also called searchhost, windows search, search host

WindowsSystem Component

The Windows Search home host. It backs the search box on current Windows 10 and Windows 11.

What you need to know

This is the Search box, not a random leftover.

SearchHost.exe hosts the Windows Search experience. Indexing work often belongs to the Windows Search service behind it.

Safe?: Usually yes
Should I close it?: Usually no
Related service?: Windows Search (WSearch)

Feex says

If search feels heavy, I would look at the indexer and which folders it is crawling. Ending SearchHost hides the box. It does not finish the index.

What is SearchHost.exe?

SearchHost.exe is the process behind the Windows Search home and search box on current Windows.

What does it do?

It shows search UI and talks to the Windows Search service for results. The indexer is a service, not this host alone.

Why is it running?

It runs when you open Search or when Windows keeps the search UI ready.

Is it safe?

Usually safe

The legitimate host is a Microsoft signed Windows component. High disk use is more often the indexer than this UI host.

A legitimate copy normally runs from:

C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe

The SystemApps folder name can change with Windows feature updates
Expected publisher: Microsoft Corporation

Can I end it?

Usually no

Ending it closes Search UI. It does not stop the indexer and can make the next search slower to open.

Can I remove it?

Do not delete SearchHost.exe. It is part of the Windows Search experience.

Should it start with Windows?

Windows can start it with the shell. Removing it from startup is not a supported way to speed up the PC.

Normal resource behavior

These are contextual labels, not universal averages.

CPU: Can rise when the search flyout is open
Memory: Moderate while the UI stays resident
Disk: Indexer disk use is usually WSearch, not this host
Network: Web suggestions use the network if that feature is on

File information

SearchHost.exe file information
Executable name	SearchHost.exe
Common legitimate path	C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
Publisher	Microsoft Corporation
Signature expectation	Signed by Microsoft Windows

Common problems

Search box will not open

Restarting Explorer or the Windows Search service is a better first step than deleting SearchHost.

High disk after an upgrade

Windows may rebuild the index. That can last a while on a large drive.

Troubleshooting

Diagnose before you change anything destructive.

Confirm the path and signature

Open the process properties and check that SearchHost.exe runs from the expected folder and is signed by the expected publisher. This is the first check, not a Registry edit.

See what the process is doing

Task Manager can show CPU, memory, disk, and GPU. High use during an obvious job is often normal. High use when the PC is idle needs a closer look at the related app or service.

Avoid destructive first steps

Do not delete SearchHost.exe, disable critical services without knowing the effect, or edit the Registry as the first move.

Technical details

SearchHost.exe technical details
Image name	SearchHost.exe
Related service	WSearch

Sources and verification

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

Microsoft Learn: Windows Search · Windows Search overview

Was this article useful?

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