You are missing the point - I can install Internet Explorer (there are several work around mentioned in this chain) but IE  iS NOT SECURE- ITS A WELL KNOW SECURITY RISK IN YOUR COMPUTER. Microsoft has already indicated they are no longer supporting it and next year they are pulling it.  The question is WHY is QB selling a product that requires you to use a insecure browser?  Why are they not fixing that?  The only answer i have found is distressing - and tells you a lot about INTUIT and QB- because they are trying to force you to subscription model.