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Windows Server 2008R2 Won’t Boot After Installing KB4539602 Update

Got this from Security Now #753.

“Can’t Boot This!”
Windows Server 2008 R2 won’t boot after installing the KB4539602 update!

Believe it or not, on any instance of Windows server 2008 R2 which is lacking those prerequisite
updates I noted above, the consequence of attempting to install KB4539602 isn’t a notice of an
update failure, or a nice mention that some prerequisite updates are missing. No… the result is a
fully BRICKED server!

For reasons only Microsoft knows, attempting to fix the desktop wallpaper stretching issue
introduced the previous month on Windows Server 2008 R2 results in the deletion of two critical
boot files “winload.efi” and “winload.exe” from the server’s C:\windows\system32\ directory.

Security Now! #753 2

Windows 2008 R2 servers have been getting bricked left and right since Friday and the community
finally figured out what was going on. Those two files need to be copied back into the
C:\Windows\System32\ directory from another installation, or the system must be rolled back using
the system imaging command. You can boot into “System Recovery” then issue the following command
against the proper system drive letter:

dism.exe /image:C:\ /cleanup-image / revertpendingactions

Or, boot into System Recovery and, as I mentioned, copy those two files from another instance. But
these are not the only consequences of January’s troubled final update.

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Can’t Create Mailbox Database In Exchange 2016

When I attempt to create a new Mailbox Database using a PS command similar to the following:

New-MailboxDatabase -Name “DB1” -Server ThatLazyEX-02 -EdbFilePath D:\DB\DB1.edb -LogFolderPath D:\Logs\

I would get an error regarding Active Directory operation failed

Found solution here.

Basically I have to specify the preferred server with the command:

Set-ADServerSettings –PreferredServer DC1

If you run Get-ADServerSettings it will display what it is. Before running the set command the server was {}.

After running the set command the New-MailboxDatabase command worked.



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Latest ESET File Security For MS Server Causes Windows Backup To Fail

Client running Windows Server 2016 running Windows Server Backup and Eset File Security For Microsoft Servers. Everything was fine till I updated the ESET File Security to version 7.1.12006.0. Then I started getting backup error exclusive lock on the EFI system partition when it tried to do the VSS. If I disable the ESET it was fine but soon as I re-enabled ESET the error would come back. I uninstalled ESET and reinstalled the older 7.0.12014.0 version and everything was fine.

Something in the new ESET is affecting Windows Server Backup. Found this on ESET Forum describing the same thing. They say version 7.2 will fix it.

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Can’t Access Map Drives With Elevated Application

Seen this before. If you have mapped drives to a server/PC and then run an application elevated to run as Administrator and you don’t see the mapped drives here is a link that describes it and options to rectify.

Here is the solution that works for me:


Detail to configure the EnableLinkedConnections” registry entry

In Registry Editor, locate and then click the following registry subkey:
Right-click Configuration, click New, and then click DWORD (32-bit) Value.
Name the new registry entry as EnableLinkedConnections.
Double-click the EnableLinkedConnections registry entry.
In the Edit DWORD Value dialog box, type 1 in the Value data field, and then click OK.
Exit Registry Editor, and then restart the computer.


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Windows 10 Update Causes Printing and Other Issues

This article describes there are 2 Windows 10 updates that are causing major issues.

For me a client that did not have default printer option and needed it for 3rd party app. For me it was not KB5424147 installed but KB5424148. Removed this update and default printer option is back. Now I have to disable Windows update till they fix it!


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Outlook 2016 Trying To Connect To Exchange 365 Password Prompt Disappears

Client that has Outlook 2016 and one of his emails connects to Exchange 365 account. Something went around and everyone using the account had to re login with email address and password. For this client there would be a white box with nothing in it pop up for a few seconds and then disappear. I tried removing the account from Outlook and then re add it but it would still do the same thing.

Found this online

Basically I had to do this workaround by adding a registry entry:

The workaround that I’ve implemented is to turn Modern Authentication off for the clients that are experiencing the issue. I’ve done so by implementing the following registry key (DWORD (32-bit) Value) after closing Outlook:


Setting this key to 0 disables Modern Authentication within the Outlook client. No reboot is required. After opening Outlook back up, I was greeted with the basic authentication password prompt. After entering the user credentials and opting to have them remembered, the clients have remained connected.

Once I did this and opened Outlook it would work.


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Google IMAP Slow Or Gives Error In Outlook

I have a client that has a corporate google email account and is configured with IMAP in Outlook 2010. Some of them have a lot of emails and folders. Some are experiencing errors of syncing.

A lot have the syncing running a long time. I found this video that helps with the syncing. Basically I configured it to just download headers for all email rather than download all email. Some of them that kept getting error I created a new Outlook profile with a new cache .PST file.

Press CTRL-ALT-S to get to the Send/Receive Window. Select Edit for All Accounts. Under your IMAP email specify to just download headers for certain folders.

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Word 2016 Can’t Load Online Templates. Something went wrong while downloading template

Client recently got this after I updated the PC from Windows 7 to 10. Updated Office to 2016 Standard. Found this online. The only thing that helped me was the last part specifying don’t connect to Internet.


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Remotely Enable Remote Desktop

I have a client that I needed to restart the server but there was one person who left their PC on with open files. I thought I had in the group policy to enable the RDP on all the workstations but I guess I did not. So I needed to remotely enable RDP. I found this site at mediarealm to be very informative.

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Startup Password Required Before Login For Windows 7

Got this on a recent client Windows 7 PC. Have not seen this for some time. This is a syskey. You can encrypt the registry with a password so that you need to enter to continue to boot. This is mostly used by scammers that hack into your PC (by giving them permission) and they setup this password so that you require to pay them to fix it. Googled online and found this site that helps. I have tried these things in the past. Usually try and do a system restore point back before this happens so it can restore a good copy of the registry. I tried this and could not restore (MS restore point is usually 30 percent works 70 percent fails for me). So what I did to get by this is the last step. This is where you boot from a Windows 7 CD. Select Repair. Select command prompt. I then ran regedit.exe and modified the following 2 registrys:

SecureBoot 0
F 0000


After this it got past asking for a password.

Microsoft has removed this option in Windows 10 to prevent this thing to happen again.

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