{"id":214725,"date":"2026-10-12T09:00:00","date_gmt":"2026-10-12T08:00:00","guid":{"rendered":"https:\/\/theunitysoft.com\/?p=214725"},"modified":"2026-10-04T01:21:13","modified_gmt":"2026-10-04T00:21:13","slug":"windows-11-iso-download-install-activate","status":"publish","type":"post","link":"https:\/\/theunitysoft.com\/nl\/blog\/windows-11-iso-download-install-activate\/","title":{"rendered":"Windows 11 ISO: How to Download, Install and Activate Windows 11 (2026 Update)"},"content":{"rendered":"<p>Windows 11 is free to download from Microsoft. What you pay for is the licence that activates it. This guide shows the safe way to get the current version \u2013 the Windows 11 2026 Update (version 26H2), released on 29 September 2026 \u2013 as an ISO file, on a USB stick or as an in-place upgrade, and how to activate it with your product key.<\/p>\n<p>It also covers the activation errors people run into most often, and what to do if your PC still runs version 24H2, which stops receiving security updates after 13 October 2026.<\/p>\n<div style=\"border:1px solid #dbe4f0;background:#f7faff;border-radius:10px;padding:20px;margin:1.5em 0;\">\n<p style=\"margin:0 0 8px;\"><strong>Het korte antwoord<\/strong><\/p>\n<ul style=\"margin:0;\">\n<li>Download Windows 11 only from Microsoft\u2019s official page, <strong>microsoft.com\/software-download\/windows11<\/strong>. It offers the Installation Assistant, the Media Creation Tool and the ISO file.<\/li>\n<li>There is <strong>one download for Home and Pro<\/strong>. Your product key decides which edition is installed and activated.<\/li>\n<li>To activate, open <strong>Settings \u2192 System \u2192 Activation \u2192 Change product key<\/strong> and enter your 25-character key.<\/li>\n<li>Reinstalling a PC that was activated before? Choose <strong>\u201cI don\u2019t have a product key\u201d<\/strong>. Windows usually reactivates itself with its digital licence.<\/li>\n<li>Still on version 24H2? Home and Pro lose security updates after <strong>13 oktober 2026<\/strong>. Update to 26H2 through Windows Update or the Installation Assistant.<\/li>\n<\/ul>\n<\/div>\n<h2>Which Windows 11 download do you need?<\/h2>\n<div style=\"overflow-x:auto;margin:1em 0;\">\n<table style=\"width:100%;border-collapse:collapse;margin:0;\">\n<thead>\n<tr style=\"background:#f1f5f9;text-align:left;\">\n<th style=\"padding:10px;border:1px solid #e2e8f0;text-align:left;vertical-align:top;\">Option<\/th>\n<th style=\"padding:10px;border:1px solid #e2e8f0;text-align:left;vertical-align:top;\">Het meest geschikt voor<\/th>\n<th style=\"padding:10px;border:1px solid #e2e8f0;text-align:left;vertical-align:top;\">Wat je nodig hebt<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding:10px;border:1px solid #e2e8f0;text-align:left;vertical-align:top;\"><strong>Installation Assistant<\/strong><\/td>\n<td style=\"padding:10px;border:1px solid #e2e8f0;text-align:left;vertical-align:top;\">Upgrading the PC you are using from Windows 10, or updating Windows 11 to the latest version<\/td>\n<td style=\"padding:10px;border:1px solid #e2e8f0;text-align:left;vertical-align:top;\">Windows 10 version 2004 or later, 9 GB of free space, an x64 PC<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px;border:1px solid #e2e8f0;text-align:left;vertical-align:top;\"><strong>Media Creation Tool<\/strong><\/td>\n<td style=\"padding:10px;border:1px solid #e2e8f0;text-align:left;vertical-align:top;\">A bootable USB stick for a clean install, a new build or another PC<\/td>\n<td style=\"padding:10px;border:1px solid #e2e8f0;text-align:left;vertical-align:top;\">A USB stick with at least 8 GB (it will be erased), an x64 PC<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px;border:1px solid #e2e8f0;text-align:left;vertical-align:top;\"><strong>ISO file (disk image)<\/strong><\/td>\n<td style=\"padding:10px;border:1px solid #e2e8f0;text-align:left;vertical-align:top;\">Virtual machines, upgrading by mounting the file, or creating a USB stick with another tool<\/td>\n<td style=\"padding:10px;border:1px solid #e2e8f0;text-align:left;vertical-align:top;\">Several gigabytes of free space, an x64 PC<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>All three install the same Windows 11. For PCs with an Arm processor, such as many Snapdragon laptops, Microsoft offers a separate Arm64 download.<\/p>\n<h2>Before you start: a five-point checklist<\/h2>\n<ol>\n<li><strong>Check the hardware.<\/strong> Windows 11 needs a compatible 64-bit processor with at least two cores, 4 GB of RAM, 64 GB of storage, UEFI firmware with Secure Boot and TPM 2.0. Microsoft\u2019s free PC Health Check app tells you within a minute whether your PC qualifies.<\/li>\n<li><strong>Back up your files.<\/strong> A clean install erases the drive you install on. An upgrade keeps files and apps, but a backup is still wise.<\/li>\n<li><strong>Have your product key ready.<\/strong> A Windows product key has 25 characters in the format XXXXX-XXXXX-XXXXX-XXXXX-XXXXX. Keep the email or document with your key at hand.<\/li>\n<li><strong>Use a USB stick with at least 8 GB<\/strong> if you want installation media. Everything on it will be deleted.<\/li>\n<li><strong>Plan for internet access and a Microsoft account.<\/strong> Microsoft requires both during the first setup of Windows 11 Home and of Windows 11 Pro for personal use.<\/li>\n<\/ol>\n<h2>How to create a Windows 11 USB stick with the Media Creation Tool<\/h2>\n<ol>\n<li>Open <a href=\"https:\/\/www.microsoft.com\/en-gb\/software-download\/windows11\" target=\"_blank\" rel=\"noopener\">microsoft.com\/software-download\/windows11<\/a> and, under <strong>Create Windows 11 Installation Media<\/strong>, select <strong>Download now<\/strong>.<\/li>\n<li>Run the downloaded tool. You need administrator rights. Accept the licence terms.<\/li>\n<li>Choose the language and edition, or keep the recommended options for this PC. The edition called \u201cWindows 11\u201d contains both Home and Pro.<\/li>\n<li>Selecteer <strong>USB flash drive<\/strong>, pick your stick and select <strong>Next<\/strong>. The tool downloads Windows 11 and makes the stick bootable. Depending on your connection, this can take a while.<\/li>\n<\/ol>\n<h2>How to download the Windows 11 ISO file<\/h2>\n<ol>\n<li>On the same Microsoft page, go to <strong>Download Windows 11 Disk Image (ISO) for x64 devices<\/strong> and select <strong>Windows 11 (multi-edition ISO for x64 devices)<\/strong>.<\/li>\n<li>Selecteer <strong>Download now<\/strong>, choose the product language and confirm.<\/li>\n<li>Select the 64-bit download. The link is valid for 24 hours.<\/li>\n<li>Optional but sensible: compare the file\u2019s SHA-256 checksum with the values Microsoft lists under <strong>Verify your download<\/strong>. In PowerShell, run <code>Get-FileHash<\/code> followed by the path to the ISO file.<\/li>\n<\/ol>\n<p>What you can do with the ISO:<\/p>\n<ul>\n<li><strong>Upgrade the PC you are using:<\/strong> double-click the ISO to mount it as a virtual drive, then run <strong>setup.exe<\/strong>. You can choose to keep your files and apps.<\/li>\n<li><strong>Install Windows 11 in a virtual machine:<\/strong> Hyper-V (included in Windows 11 Pro), VirtualBox and VMware use the ISO directly. Windows in a virtual machine needs to be activated like any other installation.<\/li>\n<li><strong>Create a USB stick with another tool:<\/strong> possible, but the Media Creation Tool is the simplest route for most people.<\/li>\n<\/ul>\n<h2>How to install Windows 11 from the USB stick<\/h2>\n<ol>\n<li>Plug in the stick and restart the PC. Open the boot menu \u2013 depending on the manufacturer usually with F12, F11, F8 or Esc right after switching on \u2013 and choose the USB stick.<\/li>\n<li>Choose language, time format and keyboard, then choose to install Windows 11.<\/li>\n<li>When setup asks for a product key, enter it. If you are reinstalling a PC that was activated before, select <strong>I don\u2019t have a product key<\/strong>.<\/li>\n<li>If setup asks you to pick an edition, choose the one that matches your licence: Home or Pro.<\/li>\n<li>Choose the drive to install on. A clean install deletes everything on that drive.<\/li>\n<li>Follow the setup screens for region, keyboard, network and Microsoft account.<\/li>\n<\/ol>\n<p><strong>Tip:<\/strong> If your PC came with Windows 11 Home, setup may install Home without asking, because the original key is stored in the PC\u2019s firmware. That is normal. Finish setup, then enter your Pro key as described below to upgrade.<\/p>\n<h2>How to activate Windows 11 with a product key<\/h2>\n<p>If you did not enter the key during setup:<\/p>\n<ol>\n<li>Open <strong>Settings \u2192 System \u2192 Activation<\/strong>.<\/li>\n<li>Next to <strong>Change product key<\/strong>, select <strong>Change<\/strong>.<\/li>\n<li>Enter the 25-character key, select <strong>Next<\/strong> and then <strong>Activate<\/strong>.<\/li>\n<\/ol>\n<p>Check the status on the same page. \u201cWindows is activated\u201d or \u201cWindows is activated with a digital license\u201d means you are done.<\/p>\n<h3>Upgrade from Windows 11 Home to Pro<\/h3>\n<p>Enter your Windows 11 Pro key in the same place: <strong>Settings \u2192 System \u2192 Activation \u2192 Change product key<\/strong>. Windows switches to Pro after a restart and keeps your files and apps. Microsoft notes that this works on PCs running an activated copy of Windows 11 Home. Not sure whether you need Pro? Our guide to <a href=\"https:\/\/theunitysoft.com\/nl\/blog\/windows-11-pro-vs-home-welke-licentie\/\">Windows 11 Pro vs Home<\/a> legt de verschillen uit.<\/p>\n<h3>Link your licence to your Microsoft account<\/h3>\n<p>When you sign in with a Microsoft account, Windows links the digital licence to it. The Activation page then shows \u201cWindows is activated with a digital license linked to your Microsoft account\u201d. That makes reactivation much easier after a major hardware change such as a new motherboard: on the Activation page, select <strong>Troubleshoot<\/strong> and then <strong>I changed hardware on this device recently<\/strong>.<\/p>\n<h3>If Settings does not accept the key<\/h3>\n<p>Open <strong>Terminal (Admin)<\/strong> and run <code>slmgr \/ipk<\/code> followed by your key, then <code>slmgr \/ato<\/code> to activate online.<\/p>\n<h2>Common Windows 11 activation errors and how to fix them<\/h2>\n<div style=\"overflow-x:auto;margin:1em 0;\">\n<table style=\"width:100%;border-collapse:collapse;margin:0;\">\n<thead>\n<tr style=\"background:#f1f5f9;text-align:left;\">\n<th style=\"padding:10px;border:1px solid #e2e8f0;text-align:left;vertical-align:top;\">Error<\/th>\n<th style=\"padding:10px;border:1px solid #e2e8f0;text-align:left;vertical-align:top;\">What it means<\/th>\n<th style=\"padding:10px;border:1px solid #e2e8f0;text-align:left;vertical-align:top;\">What to do<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding:10px;border:1px solid #e2e8f0;text-align:left;vertical-align:top;\">0xC004F050<\/td>\n<td style=\"padding:10px;border:1px solid #e2e8f0;text-align:left;vertical-align:top;\">The key cannot be used to activate this installation \u2013 often a typo, or a key for a different edition, such as a Home key on a Pro installation.<\/td>\n<td style=\"padding:10px;border:1px solid #e2e8f0;text-align:left;vertical-align:top;\">Check the key. If the editions do not match, install the edition your key is for.<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px;border:1px solid #e2e8f0;text-align:left;vertical-align:top;\">0xC004C003<\/td>\n<td style=\"padding:10px;border:1px solid #e2e8f0;text-align:left;vertical-align:top;\">The activation servers did not accept the key as valid.<\/td>\n<td style=\"padding:10px;border:1px solid #e2e8f0;text-align:left;vertical-align:top;\">Check for typos and try again later. If it persists, contact the seller with a screenshot.<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px;border:1px solid #e2e8f0;text-align:left;vertical-align:top;\">0xC004C008<\/td>\n<td style=\"padding:10px;border:1px solid #e2e8f0;text-align:left;vertical-align:top;\">The key has already been used on another PC, or on more PCs than allowed.<\/td>\n<td style=\"padding:10px;border:1px solid #e2e8f0;text-align:left;vertical-align:top;\">Use one key per PC. After a hardware change, run the activation troubleshooter.<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px;border:1px solid #e2e8f0;text-align:left;vertical-align:top;\">0xC004F213<\/td>\n<td style=\"padding:10px;border:1px solid #e2e8f0;text-align:left;vertical-align:top;\">Windows found no product key on this PC \u2013 typical after a motherboard replacement.<\/td>\n<td style=\"padding:10px;border:1px solid #e2e8f0;text-align:left;vertical-align:top;\">Enter your key, or run the troubleshooter if your licence is linked to your Microsoft account.<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px;border:1px solid #e2e8f0;text-align:left;vertical-align:top;\">0x803F7001<\/td>\n<td style=\"padding:10px;border:1px solid #e2e8f0;text-align:left;vertical-align:top;\">No valid Windows 11 licence was found.<\/td>\n<td style=\"padding:10px;border:1px solid #e2e8f0;text-align:left;vertical-align:top;\">Enter a valid product key under Change product key.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>Bought your key from TheUnitySoft and activation fails? <a href=\"https:\/\/theunitysoft.com\/nl\/neem-contact-met-ons-op\/\">Contact our support team<\/a> with the error code and a screenshot of Settings \u2192 System \u2192 Activation, and we will help you get Windows activated.<\/p>\n<h2>Still on version 24H2? Update to 26H2<\/h2>\n<p>Microsoft supports each Windows 11 version for Home and Pro for 24 months. Version 24H2 reaches the end of servicing on 13 October 2026, version 25H2 in October 2027 and the new version 26H2 in October 2028. To check your version, press the Windows key and R, type <strong>winver<\/strong> and press Enter.<\/p>\n<p>From 24H2 or 25H2, the update to 26H2 is a small enablement package that needs a single restart, offered in Windows Update. If it does not appear yet, the Installation Assistant installs the latest version. Still on Windows 10? Read what the <a href=\"https:\/\/theunitysoft.com\/nl\/blog\/windows-10-beveiligingsupdates-verlengd-tot-oktober-2027\/\">extended Windows 10 security updates<\/a> mean for you.<\/p>\n<div style=\"border:1px solid #dbe4f0;background:#f7faff;border-radius:10px;padding:20px;margin:1.5em 0;\">\n<p style=\"margin:0 0 6px;\"><strong>Need a Windows 11 licence?<\/strong><\/p>\n<p style=\"margin:0 0 12px;\">For a new build, a clean install on a PC without a licence or the step up from Home to Pro, you need a genuine Windows 11 product key. TheUnitySoft delivers it by email straight after payment, with step-by-step activation instructions.<\/p>\n<p style=\"margin:0;\"><a href=\"https:\/\/theunitysoft.com\/nl\/product\/microsoft-windows-11-pro\/\"><strong>Windows 11 Pro \u2192<\/strong><\/a> &nbsp;\u00b7&nbsp; <a href=\"https:\/\/theunitysoft.com\/nl\/product\/microsoft-windows-11-home\/\"><strong>Windows 11 Home \u2192<\/strong><\/a> &nbsp;\u00b7&nbsp; <a href=\"https:\/\/theunitysoft.com\/nl\/product-categorie\/microsoft-windows\/\"><strong>Alle Windows-licenties \u2192<\/strong><\/a><\/p>\n<\/div>\n<h2>Veelgestelde vragen<\/h2>\n<h3>Is it safe and legal to download the Windows 11 ISO?<\/h3>\n<p>Yes, if you download it from Microsoft. Microsoft offers the ISO, the Media Creation Tool and the Installation Assistant free of charge. To use Windows 11, you need a valid licence that activates it. Avoid ISO files from other websites, because they can be modified.<\/p>\n<h3>Is there a separate download for Windows 11 Home and Pro?<\/h3>\n<p>No. The official multi-edition ISO contains both editions. The product key decides which edition is installed and activated.<\/p>\n<h3>Can I install Windows 11 without a product key?<\/h3>\n<p>Yes, setup lets you skip the key. Windows then stays unactivated until you enter a valid key: it keeps reminding you to activate, and some personalisation settings are locked. A PC that was activated before reactivates itself automatically.<\/p>\n<h3>Do I need a new key after reinstalling Windows 11?<\/h3>\n<p>Usually not. If the PC was activated before, Windows recognises its digital licence and activates online after setup. Install the same edition, Home or Pro, that was activated before.<\/p>\n<h3>Wat is de nieuwste versie van Windows 11?<\/h3>\n<p>The Windows 11 2026 Update, version 26H2, released on 29 September 2026. Microsoft\u2019s ISO, Media Creation Tool and Installation Assistant deliver this version.<\/p>\n<h3>Can I install Windows 11 on a PC that does not meet the requirements?<\/h3>\n<p>Microsoft does not recommend it, and such PCs are not guaranteed to receive updates. If your PC fails the check only because TPM or Secure Boot is switched off, turn them on in the UEFI settings and check again.<\/p>\n<p style=\"font-size:13px;color:#64748b;\">Bronnen: <a href=\"https:\/\/www.microsoft.com\/en-gb\/software-download\/windows11\" target=\"_blank\" rel=\"noopener\">Microsoft \u2013 Download Windows 11<\/a>, <a href=\"https:\/\/support.microsoft.com\/en-us\/windows\/activate-windows-c39005d4-95ee-b91e-b399-2820fda32227\" target=\"_blank\" rel=\"noopener\">Microsoft Support \u2013 Activate Windows<\/a>, <a href=\"https:\/\/support.microsoft.com\/en-us\/windows\/get-help-with-windows-activation-errors-09d8fb64-6768-4815-0c30-159fa7d89d85\" target=\"_blank\" rel=\"noopener\">Microsoft Support \u2013 Windows activation errors<\/a>, <a href=\"https:\/\/support.microsoft.com\/en-us\/windows\/deployment\/install-upgrade\/upgrade-windows-home-to-windows-pro\" target=\"_blank\" rel=\"noopener\">Microsoft Support \u2013 Upgrade Windows Home to Pro<\/a>, <a href=\"https:\/\/www.microsoft.com\/en-gb\/windows\/windows-11-specifications\" target=\"_blank\" rel=\"noopener\">Microsoft \u2013 Windows 11 specifications<\/a>, <a href=\"https:\/\/learn.microsoft.com\/en-us\/lifecycle\/products\/windows-11-home-and-pro\" target=\"_blank\" rel=\"noopener\">Microsoft Lifecycle \u2013 Windows 11 Home and Pro<\/a>. Last updated: 12 October 2026.<\/p>","protected":false},"excerpt":{"rendered":"<p>How to download the Windows 11 ISO or Media Creation Tool from Microsoft, install Windows 11 version 26H2 and activate it with your product key \u2013 including fixes for common activation errors.<\/p>","protected":false},"author":2,"featured_media":214723,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[81],"tags":[],"class_list":["post-214725","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-microsoft-windows"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Windows 11 ISO: How to Download, Install and Activate Windows 11 (2026 Update) - TheUnitySoft<\/title>\n<meta name=\"description\" content=\"Download the Windows 11 ISO (26H2) safely from Microsoft, create a USB installer and activate it with your product key \u2013 step by step, with error fixes.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/theunitysoft.com\/nl\/blog\/windows-11-iso-download-install-activate\/\" \/>\n<meta property=\"og:locale\" content=\"nl_NL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Windows 11 ISO: How to Download, Install and Activate Windows 11 (2026 Update) - 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