Still having trouble running x64...
Okay maybe it's the prerequisites. The game requires a number of Visual C++ libraries. It looks like you've already installed them, but we can try reinstalling them.
Open "Apps and Features", and scroll to the area "Microsoft Visual C++ ...". There should be a total of six:
- Microsoft Visual C++ 2005 Redistributable
- Microsoft Visual C++ 2005 Redistributable (x64)
<-- this one may be listed without the (x64) due to wrong version
- Microsoft Visual C++ 2010 x64 Redistributable
- Microsoft Visual C++ 2010 x86 Redistributable
- Microsoft Visual C++ 2015-2019 Redistributable (x64)
<-- outdated
- Microsoft Visual C++ 2015-2019 Redistributable (x86)
<-- outdated
Uninstall all of them. Click the three dots far right, choose uninstall. After uninstalling all six of them, reboot. After reboot download the prerequisites directly from Microsoft. Some of these are named the same, so you'll want to download each set (x86 and x64), then install them before proceeding to the next set.
Code:
Microsoft Visual C++ 2005 Redistributable
https://www.microsoft.com/en-us/download/details.aspx?id=26347
After clicking download, choose both the x86 and x64 installers. Install them both before proceeding.
Code:
Microsoft Visual C++ 2010 Redistributable
https://www.microsoft.com/en-us/download/details.aspx?id=26999
After clicking download, choose both the x86 and x64 installers. Install them both before proceeding.
Code:
Microsoft Visual C++ 2015-2022 Redistributable
(x86): https://aka.ms/vs/17/release/vc_redist.x86.exe
(x64): https://aka.ms/vs/17/release/vc_redist.x64.exe
Download both, install both.
After reinstalling the prerequisites, some will have been upgraded from the version included with LOTRO. The updated versions are still 100% compatible.
Microsoft Visual C++ 2005 Redistributable x86: version 8.0.61001
Microsoft Visual C++ 2005 Redistributable x64: version 8.0.61000 <- upgraded from 8.0.56336
Microsoft Visual C++ 2010 Redistributable x64: version 10.0.40219
Microsoft Visual C++ 2010 Redistributable x86: version 10.0.40219
Microsoft Visual C++ 2015-2022 Redistributable x64: version 14.32.31332.0 <- upgraded from 14.26.28720.3
Microsoft Visual C++ 2015-2022 Redistributable x86: version 14.32.31332.0 <- upgraded from 14.26.28720.3
Relaunch the game and it will confirm the prerequisites exist. It might "process" a few again. Change client to 64-bit then see if it works.