New computers frequently arrive carrying software nobody chose. Those placements are commercial arrangements, and they reduce the price the machine can be sold at.
Why anyone pays for placement
Acquiring a customer for a subscription service is expensive, and a trial already installed on a new machine reaches someone at the moment they are configuring everything.
Conversion rates from that position are high enough to justify paying the manufacturer for the placement, priced per unit shipped.
The manufacturer books that payment against the cost of the machine, which allows a lower retail price without reducing its own margin.
Why the margins make this necessary
Volume computer manufacturing runs on thin margins, because the major components are bought by everyone from the same small group of suppliers.
Differentiation is therefore limited, price competition is intense, and a few units of currency per machine is a meaningful contribution to profitability.
Placement revenue, extended warranty sales and accessory attachment are the categories where that shortfall is recovered.
What it costs the buyer
Startup programmes consume memory and processor time, and several running simultaneously make a new machine feel slower than its specification suggests.
Trial security software is the most disruptive case, because it can conflict with the operating system's own protection and interrupt the user repeatedly.
The cost is largely in time and attention rather than money, provided the trials are removed before they convert into paid subscriptions.
Why business models are different
Machines sold to businesses generally ship without these placements, because buyers deploying hundreds of units will not tolerate unmanaged software on them.
The absence is part of what the higher price of a business line pays for, alongside longer support, standardised parts and predictable configurations.
The same hardware can therefore exist in two versions at different prices, distinguished mainly by what has been installed and what support attaches.
What to do with a new machine
Reviewing installed applications and startup entries before setting anything else up is the most effective single step, and it takes a few minutes.
Some manufacturers provide a tool to remove their own additions, and the operating system's own reset option removes almost everything else.
Removing them does not affect warranty or support in normal circumstances, since the software is an addition rather than part of the product itself.