Antimalware products are often difficult to remove.
If your user account is an "administrator," enable the built-in Administrator account, then log into that account and see if your "Cleanwipe" application will run properly. If that doesn't work, I suggest that you stay with your thread in the Symantec forum:
https://community.broadcom.com/symantecenterprise/discussion/cleanwipe-of-symantec-give-error-message-need-scriptor-other-solution-to-clean-symantec-permanently
To enable the built-in Administrator account in Windows 7, see https://www.sevenforums.com/tutorials/507-built-administrator-account-enable-disable.html