Hi,
Please run the Smart update to check whether the product NU is up to date. The Windows Indexing issue is fixed for the future registry clean scans. If you have already ran the registry clean and not able to restore the Windows Search and Indexing , then please use the following KB article - https://support.norton.com/sp/en/us/home/current/solutions/v95031677_EndUserProfile_en_us
Regards,
Rajkumar