The installer log shows it have problem when install vmkdb driver, however, we can not reproduce this issue in lab.
Would you please check the current status of vmkbd driver by running this command in a console:
> sc query vmkbd3
if the result shows the vmkbd driver is running, you can stop it and do clean up by following steps:
Make sure the Workstation isn’t installed from “Control Panel”.
Open on elevated console, and run:
1. net stop vmkbd3
2. sc query vmkbd3, and make sure this driver is stopped.
3. WIN+R, input regedit.
4. Delete key: HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesvmkbd3
5. Open Explorer, navigate to C:WindowsSystem32DrvStore, you can find a folder named vmkbd_XXXXX, delete it.
6. Reboot your system and try to install Workstation 15.5 again.
Anyway, would you mind upload your vminst.log here? so we can verify what happened in your previous installation.
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