A fresh free Proxmox install cannot download updates until you change one setting: it points at the subscribers-only enterprise repository. Switching to the free no-subscription repository takes two minutes in the web interface. Here is the change, plus an honest grading of the login popup everyone asks about.
The failed update check on a new Proxmox box frightens people into thinking the free version is crippled. It is not — it is misaddressed. Proxmox ships aimed at its paying customers' repository, and free users are expected to repoint it once. Do it properly, understand what each repository is, and the subject never troubles you again.
Out of the box, Proxmox VE is configured to fetch updates from the enterprise repository — the one reserved for paying subscribers. A free install has no subscription key, so the update check answers with an error like 401 Unauthorized and you get no updates at all. Nothing is broken and nothing is a trial expiring: the machine is simply pointed at a door you do not have a key for. The fix is to point it at the door made for you — the no-subscription repository — and switch the enterprise one off.
Under the hood the same change can be done in the shell: the enterprise source lives in the APT sources configuration and the free repository line reads deb http://download.proxmox.com/debian/pve bookworm pve-no-subscription for the Debian 12 based release — the codename must match your installed release, which is exactly why the web interface method above is safer for most people.
Every login on a free install shows a notice that no valid subscription was found. Let us grade it accurately: it is a sales reminder, not a penalty. It does not expire, throttle, watermark your VMs (that is a different product's habit) or disable anything. You click OK and work normally. The enterprise repository, meanwhile, genuinely is a different service: packages there pass additional testing, and a subscription also buys real support tickets with the Proxmox team. For a business running production on Proxmox, that is a fair purchase. For a home lab, the no-subscription repository is the intended, legitimate free path — Proxmox publishes it themselves.
One honest caveat completes the picture. The no-subscription repository receives packages slightly earlier in their testing journey than the enterprise repository. In practice it is stable and used by an enormous number of home and small-office installs — but the discipline that follows is wise: take a backup of important VMs before a big update, and do not update the host the night before you need it most. That advice is good on any repository; on the free one it is simply a touch more valuable.
See the full Proxmox installation and first VM creation, live and step by step.
▶️ Watch Full VideoCompletely. Proxmox themselves publish and document it as the repository for installations without a subscription. You are not bypassing anything — you are selecting the update channel intended for free users.
No. There is no trial period and no expiry in Proxmox VE. The login popup is only a reminder. With the no-subscription repository configured, a free install updates and runs indefinitely.
If Proxmox runs production workloads, the subscription is a reasonable purchase: it buys the more heavily tested enterprise repository and direct support from the Proxmox team. The honest reason to pay is support and testing time — not fear that the free version will switch off.