[Solved] Windows 10 Update Error code C1900204 couldn’t be installed

Problem: Windows 10 Update show error Windows 10 couldn’t be installed with error code 0xc1900204 “Windows Update ran into a problem” when download the new update released from Microsoft but failed to complete update installation.

Windows 10 couldn’t be installed
Error(s) found: Code C1900204 Windows Update ran into a problem.

Windows 10 Update Error code C1900204 couldn't be installed
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[Solved] ctfmon.exe sihost.exe explorer.exe System Warning Unknown Hard Error on Windows

Problem: explorer.exe System Warning dialog box show with “Unknown Hard Error” message when playing a game on Windows 7, 8 or 10 laptop or desktop Windows. Other related error message may be Blue Screen of Death (BSoD) of Unknown Hard Error, sihost.exe Unknown Hard Error and the ctfmon.exe Unknown Hard Error, etc.

explorer.exe System Warning Unknown Hard Error on Windows
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[Solved] The network adapter “NVIDIA nForce Networking Controller” is experiencing driver or hardware related issues

Problem: Windows Network Diagnostics reports “The network adapter ‘NVIDIA nForce networking controller’ is experiencing driver or hardware related issues” when trying to connect to the internet.
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[Solved] How to Enable Diagnostic Logging for Remote Network Connections

Follow this steps to turn on diagnostic logging for remote network connections in order to troubleshoot difficulties in connecting to the networks by exposing more details of the traffic than are provided in the user interface. Those steps applies to Windows Server 2008, Windows Server 2008 R2 and Windows Server 7.
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[Solved] How Do I Fix DHCP Error “Unable to Contact DHCP Server”?

Question: How Do I Fix Dynamic Host Configuration Protocol (DHCP) Error “An error occurred while renewing interface Ethernet: Unable to Contact DHCP Server. Request has timed out.” when try to lease, release or renew IP Address using ipconfig /renew command?

DHCP Error
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[Solved] “An application is requesting access to a protected item” Error Message

Question: How to solve the problem of “An application is requesting access to a protected item” error message prompting when using Windows with AVG or Avast antivirus when trying to launch an app such as web browser? Follow below method to resolve this error message.

An application is requesting access to a protected item Error
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[Solved] Restart Windows Explorer.exe to Fix Windows Unresponsive Problem

Question: How to solve the problem of Windows Explorer (Explorer.exe) has stopped working or unresponsive?

Windows Explorer also known as Windows Shell which is the graphical user interface (GUI) that renders the Taskbar, Start Menu, System Tray, Windows Explorer file manager, desktop icons, task switcher and other elements.

Problem: When Windows Explorer becomes unresponsive and freezes, it’s often necessary to reboot the computer. You can often fix the problem without waiting for full restart. Instead, you can usually just restart the Windows Explorer to clear up the issue. There are different methods to restart Windows Explorer by Automatic and Manual.
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[Solved] How to Change Microsoft Outlook 2013 Default Search Location

Question: How to change / set / modify default search location in Microsoft Outlook 2013? Default search location is the current folder when you perform search in Microsoft Outlook. If you want to search at other folder location, you can refine search by open the dropdown to the right of search terms and choosing another option.

Change Microsoft Outlook 2013 Default Search Location
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[Solved] How to Reset Administrator Password in Windows Server 2008 R2 and 2012 R2

To reset the Administrator password on Windows Server 2012 R2, perform the following steps:

Step 1: Boot from Microsoft Windows Server 2012 installation DVD / ISO Image.

Step 2: From Windows Setup menu, click Next > Repair your computer > Troubleshoot > Command Prompt.

Step 3: Run following commands:
d:
cd windows\system32
ren Utilman.exe Utilman.exe.old
copy cmd.exe Utilman.exe

Step 4: Close command prompt and click Continue.

Step 5: After server reboot and present the logon screen, click Windows Key + U to open command prompt.

Step 6: Type following command:
net user administrator Password123
This will set the Administrator password to Password123 (case sensitive).

Cleanup Steps:

Step 1: Restart server and boot from Microsoft Windows Server 2012 installation DVD / ISO Image.

Step 2: From the Windows Setup menu, click Next > Repair your computer > Troubleshoot > Command Prompt.

Step 3: Run following commands:
d:
cd windows\system32
ren utilman.exe utilman.exe.new
copy utilman.exe.old utilman.exe

Step 4: Close the command prompt and click Continue.

To reset the Administrator password on Windows Server 2008 R2, perform the following steps:

Step 1: Boot from Microsoft Windows Server 2008 installation DVD / ISO Image.

Step 2: From the Install Windows menu, click Next > Repair your computer.

Step 3: In the System Recovery Options, select the Operating System instance that you wish to repair and click Next > Command Prompt.

Step 4: Run following commands:
c:
cd windows\system32
ren Utilman.exe Utilman.exe.old
copy cmd.exe Utilman.exe

Step 5: After server reboot and present the logon screen, press Windows Key + U to open command prompt.

Step 6: Enter following command:
net user administrator Password12
This will set the Administrator password to Password12 (case sensitive).

Cleanup Steps:

Step 1: Delete the newly created Utilman.exe from C:\Windows\System32.

Step 2: Rename Utilman.exe.old back to Utilman.exe.

Alternative: Offline NT Password & Registry Editor