I unsubscribed komplete now and removed items from windows from control panel. However, NI Access says it needs to update the items I removed and currently I cannot remove or reinstall those items.
Try the following :
For e.g. MassieX substitute the 'insert program name' with Massive X
Exit Native Access then
Delete the 'insert program name' XML from %ProgramFiles%\Common Files\Native Instruments\Service Center
Delete the 'insert program name' %ProgramFiles%\Native Instruments
Delete the 'insert program name' %ProgramFiles%\Common Files\Native Instruments
Delete the 'insert program name' C:\Users\Public\Documents\Native Instruments\installed_products
Run the N.I. reg tool to remove and delete the 'insert program name'
After doing that for all the items then also Delete the Native Access XML from %ProgramFiles%\Common Files\Native Instruments\Service Center
then see if that helped