Retail, OEM and volume keys: what you are actually buying
Every cheap licence key on the internet is one of four things. Three of them work. Knowing which you are being sold is the difference between a bargain and a key that dies in a batch deactivation.
SHORT ANSWER
Retail keys are sold to consumers and transfer between machines. OEM keys are cheaper but bind permanently to the first machine. Volume and educational keys are issued in bulk to organisations, are not licensed for resale, and are the ones that get deactivated. Price is the clearest signal: a lifetime Office licence under about $20 is almost certainly a volume key.
The four types
Retail (FPP)
The version sold to consumers in shops and online. It activates on one machine at a time but can be deactivated and moved to a new computer, which matters when you replace hardware. It is the most expensive and the most durable, and it is what a seller means if they say 'transferable'.
OEM
Sold to computer manufacturers to preinstall. Legitimate and stable, but permanently bound to the first machine it activates on. Replace the motherboard and the licence is gone. Cheaper than retail for that reason, and fine if the machine is the machine.
Volume / MAK
Issued to companies and institutions to activate many machines under one agreement. Not licensed for resale to individuals. These are the source of most very cheap keys: someone with access sells activations from a block that was never theirs to sell. They activate normally, which is why buyers think they got a deal, and they are deactivated in bulk when the issuer audits the block.
Educational and NFR
Given free or nearly free to students, institutions and partners under terms that explicitly forbid resale. Same behaviour as volume keys: works today, revocable tomorrow, and the resale itself breaches the licence.
Reading the price
| Price for a lifetime Office licence | Almost certainly |
|---|---|
| $150–$250 | Genuine retail |
| $40–$120 | Retail or OEM, depending on transferability |
| $20–$40 | OEM, or retail from a regional price difference |
| Under $20 | Volume, educational, or a key already sold to someone else |
Questions that get a straight answer
- Is this retail, OEM or volume? A seller offering genuine retail says so immediately, because it justifies their price.
- Can I move it to a new computer? Yes means retail. No means OEM. Evasion means volume.
- What is the warranty, and what happens if it is revoked rather than simply faulty? Many warranties quietly exclude revocation, which is the failure that actually happens.
- Where does the stock come from? Authorised distributor, regional retail, or unanswered.
The regional price question
Not every cheap key is illegitimate. Software is priced differently by region, and a genuine retail key bought where the local price is lower is a real key. Whether reselling it across regions breaches the licence terms depends on the publisher, and it is a grey area rather than outright invalid — such keys generally do not get revoked, unlike volume keys.
The practical distinction: a regional retail key is a real licence sold outside its intended market. A volume key was never a licence for you at all. The first carries commercial risk for the seller; the second carries the risk that your software stops working.
Common questions
Why do cheap Windows and Office keys get deactivated?
Because they are usually volume or educational keys issued to an organisation under terms that forbid resale. When the publisher audits the block, every activation from it is revoked at once — including yours, even though you paid for it in good faith.
Is an OEM key legitimate?
Yes. OEM licensing is a real product tier, and an OEM key is a valid licence. Its limitation is that it binds permanently to the first machine it activates on, so it cannot move to a replacement computer.
How can I tell what type of key I am being sold?
Ask directly whether it is retail, OEM or volume, and whether it is transferable to a new machine. Then check the price against the table above. A seller who answers clearly and prices consistently with the answer is telling the truth; evasion on this specific question is the reliable warning sign.