How to check SMB version on Windows 10/8/7

SMB or Server Message Block Protocols are used to connect your figurer to an external server. Windows 10 ships amongst back upwards of these protocols but they are disabled inward the OOBE. Currently, Windows 10 supports SMBv1, SMBv2, as well as SMBv3 equally well. Different servers depending upon their configuration involve a dissimilar version of SMB to teach connected to a computer. But inward representative you lot are using Windows 8.1 or Windows 7, you lot tin banking concern tally if you lot bring it enabled too. That’s what nosotros are going to create today.

How to banking concern tally SMB version on Windows

First of all, if you lot bring Windows 7, you lot should non survive disabling SMB v2. This is due to the next reasons:

• Request compounding – allows for sending multiple SMB 2 requests equally a unmarried network request
• Larger reads as well as writes – ameliorate role of faster networks
• Caching of folder as well as file properties – clients proceed local copies of folders as well as files
• Durable handles – allow for connexion to transparently reconnect to the server if in that location is a temporary disconnection
• Improved message signing – HMAC SHA-256 replaces MD5 equally the hashing algorithm
• Improved scalability for file sharing – the number of users, shares, as well as opened upwards files per server greatly increased
• Support for symbolic links
• Client oplock leasing model – limits the information transferred betwixt the customer as well as server, improving functioning on high-latency networks as well as increasing SMB server scalability
• Large MTU back upwards – for sum role of 10-gigabyte (GB) Ethernet
• Improved unloose energy efficiency – clients that bring opened upwards files to a server tin sleep.

Even if you lot are on Windows 8.1 or Windows 10, you lot should non survive disabling SMB v3 or SMB v2 because, inward improver to the higher upwards problems, you lot mightiness confront the next issues likewise which come upwards amongst disabling SMB v3:

• Transparent Failover – clients reconnect without pause to cluster nodes during maintenance or failover
• Scale Out – concurrent access to shared information on all file cluster nodes
• Multichannel – aggregation of network bandwidth as well as mistake tolerance if multiple paths are available betwixt customer as well as server
• SMB Direct – adds RDMA networking back upwards for really high performance, amongst depression latency as well as depression CPU utilization
• Encryption – Provides end-to-end encryption as well as protects from eavesdropping on untrustworthy networks
• Directory Leasing – Improves application reply times inward branch offices through caching
• Performance Optimizations – optimizations for modest random read/write I/O.

Methods to banking concern tally what version of SMB is installed on the Server

We volition survive using the next methods to banking concern tally what version of SMB is installed on your computer:

1. The PowerShell Method.
2. The Registry Editor Method.

1] The PowerShell Method

If you lot wishing to banking concern tally what version of SMB you lot are running, you lot tin only type inward the next inward the cmdlet for PowerShell:

SMB v1 Windows 10 as well as Windows 8.1

Get-WindowsOptionalFeature –Online –FeatureName SMB1Protocol

SMB v2 Windows 10 as well as Windows 8.1

Get-SmbServerConfiguration | Select EnableSMB2Protocol

SMB v1 Windows 7

Get-Item HKLM:\SYSTEM\CurrentControlSet\Services\LanmanServer\Parameters | ForEach-Object {Get-ItemProperty $_.pspath}

SMB v2 Windows 7

Get-ItemProperty HKLM:\SYSTEM\CurrentControlSet\Services\LanmanServer\Parameters | ForEach-Object {Get-ItemProperty $_.pspath}

If it returns the value equally True, it is enabled, else is disabled.

2] The Registry Editor Method

Type regedit inward Start Search as well as hitting Enter. Once Registry Editor opens, navigate to the next key-

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LanmanServer\Parameters

Now if you lot bring the DWORDs named as SMB1 or SMB2, banking concern tally their Value Data.

If it is gear upwards to 0, it is disabled.

And inward whatsoever other case, it is enabled.

Methods to banking concern tally what version of SMB is installed on Clients

We volition survive using the next methods to banking concern tally what version of SMB is installed on your computer,

1. The PowerShell Method.
2. The Group Policy Editor Method.

1] The PowerShell Method

So, if you lot wishing to banking concern tally what version of SMB you lot are running, you lot tin only type inward the next inward Command Prompt amongst Administrator Level privileges,

SMB v1 Windows 10 as well as Windows 8.1

sc.exe qc lanmanworkstation

SMB v2 Windows 10 as well as Windows 8.1

sc.exe qc lanmanworkstation

2] The Group Policy Editor Method

It is worth noting that this method volition non operate on Windows 10 Home or equivalent edition of Windows 8 or Windows 7.

Open Run box, type gpedit.msc as well as hitting Enter to opened upwards the Local Group Policy Editor. Navigate to the next path:

Computer Configuration > Windows Settings

Under Registry, look for Registry Item amongst the next Properties,

Action: Update

Hive: HKEY_LOCAL_MACHINE

Key Path: SYSTEM\CurrentControl\services\mrxsmb10

Value Name: Start

Value type: REG_DWORD

Value Data: 4

If the Value Data is gear upwards to 4, SMB is Disabled.

For a detailed read view microsoft.com.

Related read: Why as well as how to disable SMB1 on Windows 10/8/7.

Source: https://www.thewindowsclub.com/

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