WINDOWS SERVICE

LanmanServer: Server

Q: How do I see what my PC is sharing?

Run Get-SmbShare in PowerShell: Microsoft documents it as the command that retrieves the SMB shares on the computer. If you rely on any of them, or on a shared printer, leave the Server service as it is.

Q: How do I check that it is the real service?

On Windows 11 build 26300 it ran in its own svchost.exe -k netsvcs -p process as LocalSystem and loaded C:\Windows\System32\srvsvc.dll, signed by Microsoft Windows. It depends on SamSS and Srv2.

Supports file, print and named-pipe sharing over the network for this computer: the side of Windows that lets other computers reach folders and printers you share.

TECHNICAL SUMMARY

Service name	LanmanServer
Display name	Server
Runs from	C:\Windows\System32\svchost.exe
Command line	svchost.exe -k netsvcs -p
Runs as	LocalSystem
Verdict	Depends on what you use
Microsoft, Windows Server 2016 guidance	Do not disable (needed for remote management, IPC$, SMB file sharing)

Paths, signer and service account observed on Windows 11 build 26300 on 11 November 2026. Run the commands below to check your own PC.

Should you touch it?

Depends on what you use

Microsoft's two lists differ: on Windows Server it is rated Do not disable, because remote management and SMB file sharing need it, while the guidance for fixed-purpose Windows 10 and 11 IoT Enterprise devices rates it OK to disable. On a home PC that shares nothing it is not needed, but we know of no published measurement showing a speed benefit from turning it off.

What PC Tweaker does with it

PC Tweaker does not change this service. No control in the catalogue stops it, disables it or edits its start type.

Check it yourself

See its state and start type

Get-Service LanmanServer | Format-List Name, DisplayName, Status, StartType
sc qc LanmanServer

PowerShell

02
Let it start only when needed (administrator)
Note the START_TYPE that sc qc printed first, so you can put it back.
```
sc config LanmanServer start= demand
```
cmd

Put it back

Use the start type you noted.

sc config LanmanServer start= <auto|delayed-auto|demand>

cmd

Common questions

What does the LanmanServer service do?

Supports file, print and named-pipe sharing over the network for this computer: the side of Windows that lets other computers reach folders and printers you share. It runs C:\Windows\System32\svchost.exe (svchost.exe -k netsvcs -p) as LocalSystem.

Can I disable LanmanServer?

Depends on what you use. Microsoft's two lists differ: on Windows Server it is rated Do not disable, because remote management and SMB file sharing need it, while the guidance for fixed-purpose Windows 10 and 11 IoT Enterprise devices rates it OK to disable. On a home PC that shares nothing it is not needed, but we know of no published measurement showing a speed benefit from turning it off.

How do I see what my PC is sharing?

Run Get-SmbShare in PowerShell: Microsoft documents it as the command that retrieves the SMB shares on the computer. If you rely on any of them, or on a shared printer, leave the Server service as it is.

How do I check that it is the real service?

On Windows 11 build 26300 it ran in its own svchost.exe -k netsvcs -p process as LocalSystem and loaded C:\Windows\System32\srvsvc.dll, signed by Microsoft Windows. It depends on SamSS and Srv2.