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Hi when I try to install sql server 2022 I'm getting multiple errors

Ram Kalidasu 0 Reputation points
2025-09-26T16:06:56.4533333+00:00

TITLE: Microsoft SQL Server 2022 Setup

The following error has occurred:

The MOF compiler could not connect with the WMI server. This is either because of a semantic error such as an incompatibility with the existing WMI repository or an actual error such as the failure of the WMI server to start.

For help, click: https://go.microsoft.com/fwlink?LinkID=2209051&ProdName=Microsoft%20SQL%20Server&EvtSrc=setup.rll&EvtID=50000&ProdVer=16.0.1000.6&EvtType=0xA60E3551%25400xD3BEBD98%25401211%25401

BUTTONS:

OK

TITLE: Microsoft SQL Server 2022 Setup

The following error has occurred:

Value cannot be null.

Parameter name: path1

For help, click: https://go.microsoft.com/fwlink?LinkID=2209051&ProdName=Microsoft%20SQL%20Server&EvtSrc=setup.rll&EvtID=50000&ProdVer=16.0.1000.6&EvtType=0xDEE84595%25400x11428655

BUTTONS:

OK

TITLE: Microsoft SQL Server 2022 Setup

The following error has occurred:

Value cannot be null.

Parameter name: value

For help, click: https://go.microsoft.com/fwlink?LinkID=2209051&ProdName=Microsoft%20SQL%20Server&EvtSrc=setup.rll&EvtID=50000&ProdVer=16.0.1000.6&EvtType=0xBCD389FC%25400x11428655

BUTTONS:

OK

TITLE: SQL Server Setup failure.

SQL Server Setup has encountered the following error:

Cannot find registry key 'SOFTWARE\Microsoft\Microsoft SQL Server\160\ConfigurationState'.

Error code 0x84BB0001.

For help, click: https://go.microsoft.com/fwlink?LinkID=2209051&ProdName=Microsoft%20SQL%20Server&EvtSrc=setup.rll&EvtID=50000&EvtType=0xF96176E5%25400xD3BEBD98%25401211%25401

BUTTONS:

OK

SQL Server Database Engine
Answer recommended by moderator
  1. K Durga Prasanna 30 Reputation points Microsoft External Staff
    2025-10-16T08:51:01.6066667+00:00

    Hi @Ram Kalidasu ,

    Welcome to Microsoft Q&A Forum.

    It looks like the errors you are running into during the SQL Server 2022 setup are caused by a mix of WMI service issues, missing installation parameters and leftover or corrupted registry entries from a previous install.

    The first error usually means the WMI repository is damaged or incompatible with the setup. Microsoft’s Q&A forum has a helpful thread on this exact issue. You can follow the steps there to repair the WMI repository and get it working again:

    MS SQL Installation error - The mof compiler could not connect with the wmi server - Microsoft Q&am…

    The second error generally appears when required setup parameters are missing. If you’re using a configuration file, double-check that all necessary parameters (like InstanceName) are defined before you start the installation again.

    The third error usually happens when an earlier SQL Server installation wasn’t completely removed, or its registry entries were manually deleted. To fix this, open Registry Editor (regedit.exe) and carefully delete any existing SQL Server keys under below paths. Once you’ve cleaned those entries, restart your system, then run setup.exe again, right-click and choose Run as Administrator.

    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SQL Server HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MSSQLServer HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services

    Finally, make sure you’re using the latest SQL Server 2022 installation media by downloading a fresh ISO or installer from Microsoft’s official site. Outdated or corrupted setup files are a common cause of installation failures, so it’s worth starting fresh.

    I hope this information is helpful. . If you have any further questions, please let us know. we can assist you further.

    Regards,
    Prasanna K.

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