Will the mandatory update policy in windows 10 bring security issues?

Disclaimer: This question originated the following one: Can the mandatory update policy in windows 10 generate momentum/oportunity risk?; With the purpose to divide one broad question in two specific ones, coincidentally originated due to the same policy. Thus, expecting quite different answers. Please, do read both questions before starting to scream "duplicate".

In order to analyse if I'll update all my computers working on windows I came across the the following setback.

I have the home versions of windows and by updating to windows 10, I'll receive the basic version. On which I'll loose total control of the updates that are installed.

The first problem that crosses my mind is "what if a bug is added to the system that messes up the startup? Or a security vulnerability is added to the system?"

In previous versions of Windows, I removed auto-updates for a reason. And furthermore I currently do not update the PC right after an update is released, I normally wait at least a week for feedback and bug fixes.

What will my exposure be to security issues and how can I avoid it?

Solution 1:

Security updates achieve 2 things: 1. They fix vulnerabilities, usually previously unknown. 2. They make every attacker aware of what the vulnerability is.

Releasing a patch makes unpatched systems less secure. A patch might add a new unknown vulnerability, which might be exploited. But by not installing a patch you decide to keep a known vulnerability, which will be exploited.

You can block updates even with the Home version in various ways, for example with a firewall.