If the first step does not work, you need to remove some registry keys.
Note: Ensure that all keys and references are removed:
Remove the following registry keys:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\bc-cloud-wfp HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\bcua-service HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\bcua-wfp HKEY_LOCAL_MACHINE\SOFTWARE\Blue Coat Systems
There are files located in HKEY CLASS ROOT, search the root or ‘’computer’’ for BCUA, delete anything that matches the search criteria. One symptom would be the installer reporting error ‘’ bcua_service.exe is not marked for installation’’. Deleting all reg keys including HKEY CLASS ROOT resolve this problem.
Kill the following services in Windows Task Manager:
Tasklist (looking for PID for bcua-service.exe and bcua-notifier.exe) Taskkill /PID <pid#> /F
Delete the following files and directories:
C:\ProgramData\bcua (dir) *Note need to show all files and directories to see ProgramData. C:\Program Files\Blue Coat Systems (dir) C:\Windows\System32\drivers\bcua-wfp.sys (file)
Search register for bcua and delete the entry or key that is associated with it. Also, delete the following registry key: