Can you reproduce the problem & if so how reliably?:
If you can, exact steps to reproduce. If not, exactly what you did & what happened:
When you install Symantec first, you are not able to install Comodo after that. The installation failed. When you install Comodo first and then Symantec, it crashes the whole system and you are forced to install Windows 10 again.
One or two sentences explaining what actually happened:
One or two sentences explaining what you expected to happen:
Both security suites should work together as they did for years with Windows XP and Windows 7.
If a software compatibility problem have you tried the advice to make programs work with CIS?:
Any software except CIS/OS involved? If so - name, & exact version:
Any other information, eg your guess at the cause, how you tried to fix it etc:
There is no way for a user to fix this on his own.
B. YOUR SETUP
Exact CIS version & configuration:
18.104.22.16803 and 22.214.171.12492 with Proactive configuration.
Modules enabled & level. D+/HIPS, Autosandbox/BBlocker, Firewall, & AV:
Have you made any other changes to the default config? (egs here.):
Have you updated (without uninstall) from CIS 5, 6 or 7?:
Have you imported a config from a previous version of CIS:
OS version, SP, 32/64 bit, UAC setting, account type, V.Machine used:
Windows 10 x64 v1511, UAC off, admin account
Other security/s’box software a) currently installed b) installed since OS, including initial trial security software included with system: