A note on BI stability. I am using the latest version, not even the version labelled as "stable" and I have NEVER had
Blue Iris crash in over 4 years of using Bi and I always update to the absolute latest version. If BI is crashing, I would suggest check your Windows setup and not blame BI for it. There are many COMMERCIAL installs of Blue Iris running 24/7 that also never crash. BI has quite a good logging system already built in, I am pretty sure you can find the cause of virtually all crashes in the existing logging system and in the Windows Event Logs.
That said, I have never had to do that. Maybe the people with Blue Iris crashing are using the PC for more than just Blue Iris??
For something as critical as CCTV, I only use one other application on the BI PC, which is my home automation system. As both are critical services, I don't do anything else with the system.