Hi, Cel-Ru,
Sorry to hear you're experiencing this issue.
Usually, this error is caused by a corrupted Windows update, resetting the Windows Update components and clearing the Winsxs folder should fix this problem.
Step 1: Check if doesn't have any corrupt files on the windows.
1-Right-Click on Start then click on Windows Terminal (admin)
2- Type these commands.
sfc /scannow (and press Enter)
Dism /Online /Cleanup-Image /ScanHealth (and press Enter)
Dism /Online /Cleanup-Image /CheckHealth (and press Enter)
3- The DISM tool will report whether the image is healthy, repairable, or non-repairable. If the image is repairable, you can use the /RestoreHealth argument to repair the image.
4-Type this command and press Enter:
Dism /Online /Cleanup-Image /RestoreHealth
Step 2: Cleanup the Winsxs folder
1-Right-click on Start then click on Windows Terminal(admin)
2-Paste this command and press Enter:
dism /online /cleanup-image /startcomponentcleanup
3-When finished, reboot your PC
Step 3: Reset Windows Update components
1-Right-Click on Start then click on Windows Terminal(admin)
2-Type these commands:
net stop wuauserv (and press Enter)
net stop cryptSvc (and press Enter)
net stop bits (and press Enter)
ren C:\Windows\SoftwareDistribution SoftwareDistribution.old (and press Enter)
ren C:\Windows\System32\catroot2 Catroot2.old (and press Enter)
net start wuauserv (and press Enter)
net start cryptSvc (and press Enter)
net start bits (and press Enter)
netsh winsock reset (and press Enter)
3-Reboot your PC and try to install the language pack again