Uninstalled .Net Framework 4.5 and rebooted the server , got crashed and not getting desktop (Blank screen with cmd prompt )

Question

_{Wednesday, April 20, 2016 1:03 PM}

  Due to 1 issue uninstalled .Net Framework 4.5 and rebooted the Exchange server 2013 after that facing issue of getting blank screen with cmd prompt only. Even in safe mode getting the same error. Tried system repair and sfc /scannow [No error in Sfc /scannow].   Please help me how to resolve this issue. 

All replies (13)

_{Wednesday, April 20, 2016 1:09 PM ✅Answered}

With the heavy dependence of Exchange 2013 on version 4.5.X, I'm not sure if removing it was supported. I would consider opening a ticket with Microsoft so no further harm is done.

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_{Tuesday, April 26, 2016 2:26 AM ✅Answered}

Hi,

To avoid the risk of big losses, please open a ticket with Microsoft for further assistance.

Sorry for any inconvenience.

Please remember to mark the replies as answers if they help, and unmark the answers if they provide no help. If you have feedback for TechNet Support, contact [email protected].

Allen Wang
TechNet Community Support

_{Wednesday, April 20, 2016 1:12 PM}

  Due to 1 issue uninstalled .Net Framework 4.5 and rebooted the Exchange server 2013 after that facing issue of getting blank screen with cmd prompt only. Even in safe mode getting the same error. Tried system repair and sfc /scannow [No error in Sfc /scannow].   Please help me how to resolve this issue. 

Since the Operating System is not booting properly you may be better off asking this question in the Windows Server forum.  If it was me and I had multiple Exchange Servers in a DAG I would just rebuild the server and have it back up and running in less than a day rather than troubleshoot the server not booting.

Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread

_{Thursday, April 21, 2016 7:19 AM | 2 votes}

Hi,

For your question, please try below steps to troubleshooting:

1. Start Windows server, then run below command in command prompt:

DISM.exe /online /enable-feature /all /featurename:NetFx4
DISM.exe /online /enable-feature /all /featurename:MicrosoftWindowsPowerShell

2. Once both the commands run successful without any errors, restart the server with "Shutdown -r -t 0"
3. Once the server is restarted, open PowerShell by "PowerShell.exe" in command prompt, then enter the following command to complete GUI installation:

Install-WindowsFeature Server-Gui-Shell, Server-Gui-Mgmt-Infra

4. Once the GUI Shell is installed, you need to restart the server with the following command:
Restart-Computer
5. Then re-install .Net FrameWrok with PowerShell:

Add-WindowsFeature Net-Framework-45-Features

If there're error return, please post here for further assistance. More details about it, please refer to: https://blogs.technet.microsoft.com/askcore/2014/04/24/removing-net-framework-4-54-5-1-removes-windows-20122012r2-ui-and-other-features/

Moreover, recover install Exchange server might be more great as Hinte mentioned. For your reference:
https://technet.microsoft.com/en-us/library/dd876880(v=exchg.150).aspx

Please remember to mark the replies as answers if they help, and unmark the answers if they provide no help. If you have feedback for TechNet Support, contact [email protected].

Allen Wang
TechNet Community Support

_{Thursday, April 21, 2016 9:34 AM}

Tried the below cmd and rebooted the PC , got the Desktop but AD and Exchange things are not working properly now.

"** Dism /online /enable-feature /all /featurename:Server-Gui-Mgmt /featurename:Server-Gui-Shell /featurename:ServerCore-FullServer** " 

Please guide whether the above cmd make any issues and now how to check that Server is working properly.

_{Thursday, April 21, 2016 11:00 AM}

Tried the below cmd and rebooted the PC , got the Desktop but AD and Exchange things are not working properly now.

"** Dism /online /enable-feature /all /featurename:Server-Gui-Mgmt /featurename:Server-Gui-Shell /featurename:ServerCore-FullServer** " 

Please guide whether the above cmd make any issues and now how to check that Server is working properly.

This sounds like a stand-alone Exchange server installed on a Domain Controller to boot.  I highly recommend that you do no further harm and open a ticket with Microsoft.

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_{Friday, April 22, 2016 3:20 AM}

Hi,

The command as you mentioned is used to convert a server core installation back to a full operating system installation(GUI Version). It'll not take effect to AD, however the Full installation option support installing all available server roles and also other Microsoft or third-party server applications, such as Microsoft Exchange Server.

You can re-install .Net Framework and restart server, then login EAC or EMS, and check mail flow.

Note that if you don't familiar with this, please open a ticket with Microsoft as Andy mentioned.

Please remember to mark the replies as answers if they help, and unmark the answers if they provide no help. If you have feedback for TechNet Support, contact [email protected].

Allen Wang
TechNet Community Support

_{Friday, April 22, 2016 5:08 AM}

Could you please say me the command to reinstall .Net framework 4.5 &  .Net framework 3.5 ?

Already installed .Net Framework with cmd which you have given. Also tried .Net repair tool too.

When we install .Net framework or any features and reboot again system getting into server core.

Ok i will speak with my leads and raise a ticket with Microsoft. 

_{Friday, April 22, 2016 6:25 AM}

When i tried this recover cmd in Powershell [Exchange 2013] - setup /Mode:RecoverServer /IAcceptExchangeServerLicenseTerms

**Getting below error : **

" Welcome to Microsoft Exchange Server 2013 Cumulative Update 11 Unattended Setup
Languages
Management tools
Client Access role: Client Access Front End service
Client Access role: Front End Transport service

The following server roles are already installed: BridgeheadRole, ClientAccessRole, MailboxRole, UnifiedMessagingRole,
 FrontendTransportRole, AdminToolsRole, CafeRole.
File exchangeserver.msi does not exist in specified directory F:\Exchange Server\V15\bin " .

Exchange things are getting displayed but not working.

_{Thursday, October 18, 2018 8:19 AM}

perfect! thanks for your help

_{Tuesday, March 3, 2020 10:50 AM}

Thanks Bro, This fixed my issue.

_{Thursday, March 19, 2020 10:51 AM}

Hi Allen,

Thank you it worked for me. Appreciate you help.

Naveen

_{Thursday, April 9, 2020 5:02 AM}

Its worked for me.. thanks