Back up all data before proceeding.
Triple-click anywhere in the line below on this page to select it:
/.Spotlight-V100
Right-click or control-click the highlighted line and select
Services ▹ Open
from the contextual menu. A folder should open with a subfolder named ".Spotlight-V100" selected. Move the subfolder to the Trash. You may be prompted for your administrator login password.
Restart the computer in safe mode. Certain caches maintained by the system will be rebuilt.
Safe mode is much slower to start up than normal. The next normal startup may also be somewhat slow.
When the login screen appears, restart as usual (not in safe mode) and test. There's no need to log in while in safe mode.
Note: If FileVault is enabled in OS X 10.9 or earlier, or if a firmware password is set, or if the startup volume is a software RAID, you can’t start in safe mode. In that case, ask for instructions.
You can't see the folder in the Trash because it's invisible. The next time you empty the Trash, it should be deleted.