Sources and how we cite them
Every factual claim on ReinstallOS is checked against the vendor's own documentation. This page lists those documents, the rules for how they are used, and the things this site deliberately does not claim.
Where the facts come from
Every factual claim on this site is checked against the operating-system vendor's own documentation, or against the publisher of a tool we mention. That means Microsoft's support and specification pages, Apple's support articles and user guides, and the project sites of the open-source USB writers. We read those pages for the exact wording of a menu item, a requirement or a procedure, and then write our own explanation of the decision a reader has to make.
What we add ourselves
The judgements are ours: which operation fits which symptom, what to check before an irreversible step, and what to do when the obvious fix does not work. A vendor page explains how a tool behaves; it does not tell you whether you should be using it at all. That decision layer, the mistakes lists and the short pre-flight checklists are the original work here.
What we do not do
We do not reproduce review prose, star ratings, score tables or charts. We do not claim a benchmark, a measured figure, a test date, a screenshot or a version number we have not checked. We do not present an opinion as though a vendor endorsed it. Where a widely copied instruction is wrong — disabling Secure Boot, using a 16 GB stick for a macOS installer, saying a macOS reinstall wipes data — we say so visibly rather than silently correcting it, because a reader may already have seen the wrong version.
Why there is no mirror list
A modified installation image defeats the purpose of a reinstall. Every download link on this site resolves to the vendor's own domain, and the third-party tools we link to are writers for an image you already obtained from the vendor, not sources of one. There are no affiliate parameters, no redirect layer and no sponsored placement.
Corrections
Documentation changes and we make mistakes. If a screen label, a requirement or a procedure here no longer matches what the vendor publishes, write to the address on the contact page with the page URL and the vendor's wording. Corrections are made to the source modules and rebuilt across the site, so a fix cannot leave an older copy behind.
How to verify a link yourself
Hover any download link on this site and read the hostname in the status bar. It should be the vendor's own domain. There is no shortener, no redirect layer and no affiliate parameter on this site, and no binary is hosted here.
The 22 sources used on this site
- Download Windows 11 Microsoft · Vendor download page · Ongoing Installation Assistant, Media Creation Tool and the direct disk image (ISO), with language and architecture selection.
- Download Windows 10 Microsoft · Vendor download page · Ongoing Windows 10 installation media, still published by the vendor after the end of support on 14 October 2025.
- Windows 11 Enterprise evaluation Microsoft · Vendor evaluation programme · Ongoing A full Enterprise image made available for a time-limited evaluation, commonly used in virtual machines and test labs.
- Create installation media for Windows Microsoft Support · Official support article · Ongoing What the Media Creation Tool needs, what it writes, and the choices it presents.
- Windows 11 specifications and system requirements Microsoft · Vendor specification page · Ongoing The published hardware and firmware requirements, including UEFI, Secure Boot capability and TPM 2.0.
- Windows release health dashboard Microsoft Learn · Vendor status dashboard · Ongoing Current known issues and rollout status for Windows releases.
- Microsoft Support — Windows help Microsoft Support · Official support documentation · Ongoing Vendor documentation for activation, updates, backup and recovery on Windows.
- Windows Insider Program Microsoft · Vendor preview programme · Ongoing Pre-release Windows builds distributed through the vendor's own update channel.
- How to download and install macOS Apple Support · Official support article · Ongoing Apple's instructions for obtaining macOS through the App Store, Software Update and Recovery.
- Create a bootable installer for macOS Apple Support · Official support article · Ongoing The createinstallmedia command, the size of USB volume it needs and the current syntax.
- How to reinstall macOS Apple Support · Official support article · Ongoing Reinstalling macOS from Recovery and what happens to apps and personal data.
- macOS Recovery and startup options Apple Support · Official support article · Ongoing Entering Recovery on Apple silicon and Intel Macs and the utilities available there.
- Disk Utility User Guide for Mac Apple · Official user guide · Ongoing Viewing devices and volumes, APFS, and erasing a disk or volume.
- macOS User Guide Apple · Official user guide · Ongoing Apple's documentation for Time Machine, backup, FileVault and everyday Mac settings.
- Rufus Rufus project (Pete Batard) · Open-source USB writer — publisher's site · Ongoing Writing a bootable image to a USB device, with explicit partition scheme and file system options.
- Ventoy Ventoy project · Open-source USB writer — publisher's site · Ongoing A bootable USB device that can carry several ISO files side by side.
- balenaEtcher balena · Open-source image writer — publisher's site · Ongoing A minimal image-to-device writer with few options.
- Ubuntu Desktop download Canonical · Distribution download page · Ongoing The official Ubuntu Desktop image and its documentation.
- Fedora Workstation download Fedora Project · Distribution download page · Ongoing The official Fedora Workstation image.
- Debian download Debian Project · Distribution download page · Ongoing Official Debian installation images.
- Apple Developer Downloads Apple · Vendor developer portal · Ongoing Additional Apple-provided developer downloads requiring an Apple Developer account.
- App Store Apple · Vendor distribution channel · Ongoing Apple's own software distribution channel, including full macOS installers.
Questions and corrections
If a screen label or a requirement here no longer matches the vendor's current wording, please use the contact page and include the page URL. The site's editorial method is described on the about page.