Error code 0x8007045A ERROR_DLL_INIT_FAILED with Windows Update

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If you receive an error code 0x8007045A ERROR_DLLL_INIT_FAILED when using Windows Update or updating to Windows 10, this message may help. This error usually occurs when the msxml DLL files in your Windows operating system are corrupted.

Microsoft XML Core Services or MSXML is the native Win32 API for powerful XML applications that meet the XML 1.0 standard. MSXML6 was first shipped with Windows Vista and later and offers enhancements for security, performance, stability and other enhancements as well as support for x64 and Itanium architectures.

Error code 0x8007045A

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There are three ways to solve this problem:

1]Run the System File Checker and see if it helps.

2] Replace files msxml3.dll, msxml3a.dll, msxml3r.dll, msxml6.dll and msxml6r.dll on your system with good files. You can save these files to another location as a precaution. If you now have another computer, copy these 5 files from your other system to the folder C:WindowsSystem32 of the problem system and replace any damaged files. Make sure both computers are using the same version of Windows.

Once you have done this, you must re-record these DLL files:

or file, open a command prompt as administrator, type and press Enter:



In the runtime field, type the following and press Enter:

regsvr32 C:WindowsSystem32msxml3. dll


Do the same for the other four – msxml3a.dll, msxml3r.dll, msxml6.dll and msxml6r.dll.

Reboot your system and check if this helps.

3] If this doesn’t work for you, you have another option. Download the latest MSDN XML parser and install it on your system.

Let’s hope something helps.

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