how to resolve error during showing in reinstall to amp secure 8.1

[mcapradeep2016]

i'm facing some error during install updated cisco amp (endpoint 8.1). and old is already removed form pc. but showing error"upgrade can not install before need unstall old version". 

[dstaudt]

Don't have an immediate suggestion, but sounds like something the CSE product TAC support folks might be in the best postion to help with: https://www.cisco.com/c/en/us/support/index.html