{"id":217128,"date":"2026-09-14T19:17:11","date_gmt":"2026-09-14T17:17:11","guid":{"rendered":"https:\/\/www.deskmodder.de\/blog\/?p=217128"},"modified":"2026-09-14T19:27:07","modified_gmt":"2026-09-14T17:27:07","slug":"kb5129195-windows-11-26h2-25h2-out-of-band-update","status":"publish","type":"post","link":"https:\/\/www.deskmodder.de\/blog\/2026\/09\/14\/kb5129195-windows-11-26h2-25h2-out-of-band-update\/","title":{"rendered":"KB5129195 Windows 11 26H2\/25H2 Out of Band Update"},"content":{"rendered":"<p>Microsoft hat ein Out of Band Update zum September Patchday bereitgestellt. Es handelt sich um die KB 5129195 und dadurch erh\u00f6ht sich die Versionsnummer auf die Windows 11 26H2 26300.9457, bzw. Windows 11 25H2 26200.9457 und Windows 11 24H2 26100.9457.<\/p>\n<p><a href=\"https:\/\/www.deskmodder.de\/blog\/wp-content\/uploads\/2026\/09\/kb5129195-windows-11-26h2-25h2.jpg\" rel=\"lightbox[217128]\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.deskmodder.de\/blog\/wp-content\/uploads\/2026\/09\/kb5129195-windows-11-26h2-25h2-500x350.jpg\" alt=\"\" width=\"500\" height=\"350\" class=\"aligncenter size-medium wp-image-217129\" srcset=\"https:\/\/www.deskmodder.de\/blog\/wp-content\/uploads\/2026\/09\/kb5129195-windows-11-26h2-25h2-500x350.jpg 500w, https:\/\/www.deskmodder.de\/blog\/wp-content\/uploads\/2026\/09\/kb5129195-windows-11-26h2-25h2-810x566.jpg 810w, https:\/\/www.deskmodder.de\/blog\/wp-content\/uploads\/2026\/09\/kb5129195-windows-11-26h2-25h2-293x205.jpg 293w, https:\/\/www.deskmodder.de\/blog\/wp-content\/uploads\/2026\/09\/kb5129195-windows-11-26h2-25h2.jpg 964w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/p>\n<p>Solltet ihr schon das <a href=\"https:\/\/www.deskmodder.de\/blog\/2026\/09\/10\/kb5124010-windows-11-26h2-25h2-manueller-download-optionales-update-september-2026\/\" target=\"_blank\">optionale Update KB5124010<\/a> installiert haben, dann ist dieses Update nicht mehr f\u00fcr euch. Da das optionale eine h\u00f6here Versionsnummer hat.<\/p>\n<h3>Bekannte Probleme durch die KB5129195<\/h3>\n<ul>\n<li><strong>USB-Audio-Class-1.0-Ger\u00e4te mit Fehlercode 10 oder ohne Audioausgabe<\/strong> Nach der Installation des Windows-Sicherheitsupdates vom 8. September 2026 lassen sich einige USB-Audio-Class-1.0-Ger\u00e4te m\u00f6glicherweise nicht starten oder geben keinen Ton wieder. Bei betroffenen Ger\u00e4ten k\u00f6nnen eines oder mehrere der folgenden Symptome auftreten: Das Ger\u00e4t zeigt im Ger\u00e4te-Manager folgende Fehlermeldung an: \u201eDieses Ger\u00e4t kann nicht gestartet werden (Code 10).\u201c Keine Audioausgabe. Die Lautst\u00e4rkeregler reagieren nicht oder bleiben auf Null stehen. Die Toneinstellungen reagieren nicht oder sind nicht verf\u00fcgbar. Dieses Problem betrifft ausschlie\u00dflich USB-Audio-Class-1.0-Ger\u00e4te.<\/li>\n<\/ul>\n<h3>Korrekturen und Verbesserungen durch die KB5129195<\/h3>\n<ul>\n<li><strong>Sicherheit<\/strong> Dieses Update enth\u00e4lt Schutzma\u00dfnahmen, die in <strong>CVE-2026-62721<\/strong> dokumentiert sind. Diese Schwachstelle betrifft eine Berechtigungserweiterung im Windows User-Mode Power Service (UMPS).<\/li>\n<li><strong>Remotedesktopdienste (bekanntes Problem)<\/strong> Behoben: Dieses Update behebt ein Problem, das die Remotedesktopdienste (RDS) nach der Installation des Windows-Sicherheitsupdates vom September 2026 (KB5122880) beeintr\u00e4chtigt. In betroffenen Umgebungen kann es zu Instabilit\u00e4ten bei den Remotedesktopdiensten kommen, was zu Fehlern bei RDP-Verbindungen und bei der Anmeldung oder dazu f\u00fchren kann, dass Server w\u00e4hrend der Remotedesktopkonfiguration nicht mehr reagieren. Auch zugeh\u00f6rige Tools, darunter die Microsoft Management Console (MMC), der RDS-Lizenzdiagnosetool, der Datei-Explorer und die Windows Update-Seite, reagieren m\u00f6glicherweise nicht mehr.<\/li>\n<li><strong>Hyper-V (bekanntes Problem)<\/strong> Behoben: Bei einigen Anwendungen, die von HCS verwaltete virtuelle Maschinen nutzen, traten Probleme auf, wenn Hostordner mithilfe von Plan9 f\u00fcr Linux-VMs freigegeben wurden. Ordner, die vom Windows-Host mithilfe von Plan9 freigegeben wurden, wurden in der Gastumgebung nicht angezeigt oder waren dort nicht zug\u00e4nglich.<\/li>\n<li><strong>8-Kanal- oder 3D-Audiomodi<\/strong> Behoben: Einige USB-Audio-Class-1.0-Ger\u00e4te, die in Standard-Stereokonfigurationen wie erwartet funktionierten, fielen bei der Verwendung von Mehrkanal-Audiofunktionen, einschlie\u00dflich 8-Kanal- oder 3D-Audiomodi, aus. (Hinweis: Es gibt weitere Audio-Probleme, die in diesem OOB-Update nicht behoben wurden. <\/li>\n<li><a href=\"https:\/\/support.microsoft.com\/en-us\/servicing\/os\/windows-11\/2026\/09\/kb5129195-windows-11-24h2-25h2-security-update\" target=\"_blank\">support.microsoft<\/a><\/li>\n<\/ul>\n<h3>Manueller Download der KB5129195<\/h3>\n<ul>\n<li><a href=\"https:\/\/catalog.sf.dl.delivery.mp.microsoft.com\/filestreamingservice\/files\/471c8f54-b9fc-491d-9944-234d5db009f0\/public\/windows11.0-kb5129195-x64_ed361878ec2b56a7dfdb8f256565263a7fdc8eaa.msu\" target=\"_blank\">Windows11.0-KB5129195-x64.msu<\/a> <\/li>\n<li>ARM: <a href=\"https:\/\/catalog.sf.dl.delivery.mp.microsoft.com\/filestreamingservice\/files\/3750a920-b998-4242-8fed-32423df59284\/public\/windows11.0-kb5129195-arm64_e6b0a7f8c8cacdf87e8da1a01fe073934a0002b4.msu\" target=\"_blank\">Windows11.0-KB5129195-arm64.msu<\/a><\/li>\n<\/ul>\n<h3>Windows 11 Tutorials und Hilfe<\/h3>\n<ul>\n<li>In unserem <a href=\"https:\/\/www.deskmodder.de\/wiki\/index.php?title=Kategorie:Windows_11\" rel=\"noopener noreferrer\" target=\"_blank\">Windows 11 Wiki<\/a> findet ihr sehr viele hilfreiche Tipps und Tricks.<\/li>\n<li>Falls ihr Fragen habt, dann stellt diese ganz einfach bei uns im <a href=\"https:\/\/www.deskmodder.de\/phpBB3\/viewforum.php?f=353\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>Forum<\/strong><\/a>.<\/li>\n<li><strong>Installationsmedien:<\/strong> Aktuelle Windows 11 ISOs findet ihr hier: <a href=\"https:\/\/www.deskmodder.de\/blog\/2026\/01\/28\/windows-11-26h2-26300-iso-esd-deutsch-english\/\" rel=\"noopener\" target=\"_blank\">26H2 26300<\/a> und hier <a href=\"https:\/\/www.deskmodder.de\/blog\/2025\/06\/28\/windows-11-25h2-26200-iso-esd-deutsch-english\/\" rel=\"noopener\" target=\"_blank\">25H2 26200<\/a>. Ansonsten <a href=\"https:\/\/www.deskmodder.de\/blog\/#:~:text=l%C3%A4dt%20die%2019045.3803-,Download%2DBereich,-Windows%2011%20ISO\" rel=\"noopener\" target=\"_blank\">immer in der rechten Sidebar<\/a>.<\/li>\n<li><a href=\"https:\/\/www.deskmodder.de\/wiki\/index.php?title=Windows_11_neu_clean_installieren_Tipps_und_Tricks\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>Windows 11 neu clean installieren Tipps und Tricks<\/strong><\/a>.<\/li>\n<li><a href=\"https:\/\/www.deskmodder.de\/wiki\/index.php?title=Windows_11_auch_ohne_TPM_und_Secure_Boot_installieren\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>Windows 11 auch ohne TPM und Secure Boot installieren<\/strong><\/a>.<\/li>\n<li><a href=\"https:\/\/www.deskmodder.de\/wiki\/index.php?title=Windows_11_mit_einem_lokalen_oder_Microsoft_Konto_installieren\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>Windows 11 mit lokalem Konto auch Offline installieren<\/strong><\/a>.<\/li>\n<li><a href=\"https:\/\/www.deskmodder.de\/wiki\/index.php?title=Windows_11_Inplace_Upgrade_Reparatur_oder_Feature_Update\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>Windows 11 Inplace Upgrade Reparatur oder Feature Update<\/strong><\/a>.<\/li>\n<li><a href=\"https:\/\/www.deskmodder.de\/wiki\/index.php?title=Automatisch_anmelden_Pin_entfernen_Windows_11\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>Automatisch anmelden Pin entfernen Windows 11<\/strong><\/a>.<\/li>\n<li>Alle Beitr\u00e4ge zu Windows 11 im Blog findet ihr <a href=\"https:\/\/www.deskmodder.de\/blog\/category\/windows-11\/\" rel=\"noopener\" target=\"_blank\">\u00fcber diese Seite<\/a>. Wobei auch <a href=\"https:\/\/www.deskmodder.de\/blog\/\" rel=\"noopener\" target=\"_blank\">alle anderen Artikel<\/a> interessant sein k\u00f6nnen.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Microsoft hat ein Out of Band Update zum September Patchday bereitgestellt. Es handelt sich um die KB 5129195 und dadurch erh\u00f6ht sich die Versionsnummer auf die Windows 11 26H2 26300.9457, bzw. Windows 11 25H2 26200.9457 und Windows 11 24H2 26100.9457.&hellip; <\/p>\n","protected":false},"author":134,"featured_media":153427,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[80310],"tags":[98334,98333,98332,81475,89392,95414],"class_list":["post-217128","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-windows-11","tag-cve-2026-62721","tag-kb-5129195","tag-kb5129195","tag-out-of-band-update","tag-windows-11-25h2","tag-windows-11-26h2"],"wp_featured_image":{"id":153427,"alt_text":"","description":"","media_type":"image","media_details":{"width":978,"height":584,"file":"2021\/05\/windows-10-update-logo.jpg","sizes":{"medium":{"file":"windows-10-update-logo-500x299.jpg","width":500,"height":299,"mime-type":"image\/jpeg","source_url":"https:\/\/www.deskmodder.de\/blog\/wp-content\/uploads\/2021\/05\/windows-10-update-logo-500x299.jpg"},"large":{"file":"windows-10-update-logo-810x484.jpg","width":810,"height":484,"mime-type":"image\/jpeg","source_url":"https:\/\/www.deskmodder.de\/blog\/wp-content\/uploads\/2021\/05\/windows-10-update-logo-810x484.jpg"},"thumbnail":{"file":"windows-10-update-logo-306x183.jpg","width":306,"height":183,"mime-type":"image\/jpeg","source_url":"https:\/\/www.deskmodder.de\/blog\/wp-content\/uploads\/2021\/05\/windows-10-update-logo-306x183.jpg"},"blog-large":{"file":"windows-10-update-logo-642x300.jpg","width":642,"height":300,"mime-type":"image\/jpeg","source_url":"https:\/\/www.deskmodder.de\/blog\/wp-content\/uploads\/2021\/05\/windows-10-update-logo-642x300.jpg"},"blog-medium":{"file":"windows-10-update-logo-306x205.jpg","width":306,"height":205,"mime-type":"image\/jpeg","source_url":"https:\/\/www.deskmodder.de\/blog\/wp-content\/uploads\/2021\/05\/windows-10-update-logo-306x205.jpg"},"recent-thumb":{"file":"windows-10-update-logo-350x316.jpg","width":350,"height":316,"mime-type":"image\/jpeg","source_url":"https:\/\/www.deskmodder.de\/blog\/wp-content\/uploads\/2021\/05\/windows-10-update-logo-350x316.jpg"},"service-featured":{"file":"windows-10-update-logo-600x330.jpg","width":600,"height":330,"mime-type":"image\/jpeg","source_url":"https:\/\/www.deskmodder.de\/blog\/wp-content\/uploads\/2021\/05\/windows-10-update-logo-600x330.jpg"},"wp_rp_thumbnail":{"file":"windows-10-update-logo-50x50.jpg","width":50,"height":50,"mime-type":"image\/jpeg","source_url":"https:\/\/www.deskmodder.de\/blog\/wp-content\/uploads\/2021\/05\/windows-10-update-logo-50x50.jpg"}},"image_meta":{"aperture":"0","credit":"","camera":"","caption":"","created_timestamp":"0","copyright":"","focal_length":"0","iso":"0","shutter_speed":"0","title":"","orientation":"0","keywords":[]}},"post":155113,"source_url":"https:\/\/www.deskmodder.de\/blog\/wp-content\/uploads\/2021\/05\/windows-10-update-logo.jpg"},"commentcount":3,"wp_comments":[{"id":345449,"parent":0,"author":0,"author_name":"Tobias","author_email":"h.wiki@gmx.ch","author_url":"","author_avatar_urls":{"24":"https:\/\/secure.gravatar.com\/avatar\/0b2e89b59afb2ccec986acfe00c1e514179a010a27359fdac4e36bc0198fe39f?s=24&d=mm&r=g","48":"https:\/\/secure.gravatar.com\/avatar\/0b2e89b59afb2ccec986acfe00c1e514179a010a27359fdac4e36bc0198fe39f?s=48&d=mm&r=g","96":"https:\/\/secure.gravatar.com\/avatar\/0b2e89b59afb2ccec986acfe00c1e514179a010a27359fdac4e36bc0198fe39f?s=96&d=mm&r=g"},"date":"2026-09-14T19:31:20","cld_nonce":"746782ff12","content":{"rendered":"<p>Sehr unerwartet von Microsoft, bei mir l\u00e4dt es das Update sogar automatisch<\/p>\n"},"status":"1"},{"id":345451,"parent":0,"author":6266,"author_name":"Harry S","author_email":"pc_harry@gmx.de","author_url":"","author_avatar_urls":{"24":"https:\/\/secure.gravatar.com\/avatar\/31105d10c5aa63ddeef463c780744beb8c9c34ac522b7c1275703903f679a6ca?s=24&d=mm&r=g","48":"https:\/\/secure.gravatar.com\/avatar\/31105d10c5aa63ddeef463c780744beb8c9c34ac522b7c1275703903f679a6ca?s=48&d=mm&r=g","96":"https:\/\/secure.gravatar.com\/avatar\/31105d10c5aa63ddeef463c780744beb8c9c34ac522b7c1275703903f679a6ca?s=96&d=mm&r=g"},"date":"2026-09-14T19:37:32","cld_nonce":"746782ff12","content":{"rendered":"<p>Aber wir haben doch bereits die 26&#215;00.9539 installiert ,,,<br \/>\nSeltsam, sehr seltsam &#8230;<\/p>\n"},"status":"1"},{"id":345452,"parent":0,"author":7883,"author_name":"Thomas62","author_email":"koma_tom@web.de","author_url":"","author_avatar_urls":{"24":"https:\/\/secure.gravatar.com\/avatar\/b3d05ca63a516225a047b27c8d9e0ffb4961efda33bc32a8d5796a5abb98dfd8?s=24&d=mm&r=g","48":"https:\/\/secure.gravatar.com\/avatar\/b3d05ca63a516225a047b27c8d9e0ffb4961efda33bc32a8d5796a5abb98dfd8?s=48&d=mm&r=g","96":"https:\/\/secure.gravatar.com\/avatar\/b3d05ca63a516225a047b27c8d9e0ffb4961efda33bc32a8d5796a5abb98dfd8?s=96&d=mm&r=g"},"date":"2026-09-14T19:42:00","cld_nonce":"746782ff12","content":{"rendered":"<p>? <\/p>\n<p>ich habe das ! <\/p>\n<p>Edition\tWindows 11 Pro<br \/>\nVersion\t26H2<br \/>\nInstalliert am\t\u200e10.\u200e09.\u200e2026<br \/>\nBetriebssystembuild\t26300.9539<br \/>\nFunktionspaket\tWindows Feature Experience Pack 1000.26100.372.0<\/p>\n<p>Home, Pro, Pro Educ., Pro for Work., Educ., Multi Session, Ent. 26300.9539 KB5124010 10.09.2026 Auch als N-Version SendGB (8,7 GB) Danke an Birkuli<\/p>\n<p>Windows 11 26H2 26300.9539 (Optionales Update des Monats)<\/p>\n<p>jetzt soll ich wieder R\u00fcckw\u00e4rts Updaten ?????<\/p>\n<p>erh\u00f6ht sich die Versionsnummer auf die Windows 11 26H2 26300.9457<\/p>\n<p>check ich nicht<\/p>\n"},"status":"1"}],"wp_author":{"id":134,"name":"moinmoin","description":"Ich bin nicht allwissend, was <a href=\"https:\/\/www.deskmodder.de\/wiki\/index.php?title=Kategorie:Windows_11\">Windows<\/a> angeht. Aber genau deshalb nehme ich Windows gerne auseinander und unter die Lupe, um all mein Wissen zu erweitern. <i>J\u00fcrgen<\/i>","author_avatar_urls":{"24":"https:\/\/secure.gravatar.com\/avatar\/fab96769102f8886245ab411df9a42a235be79261e4b44aa7ab2a555da8b86b4?s=24&d=mm&r=g","48":"https:\/\/secure.gravatar.com\/avatar\/fab96769102f8886245ab411df9a42a235be79261e4b44aa7ab2a555da8b86b4?s=48&d=mm&r=g","96":"https:\/\/secure.gravatar.com\/avatar\/fab96769102f8886245ab411df9a42a235be79261e4b44aa7ab2a555da8b86b4?s=96&d=mm&r=g"}},"cld_nonce":"746782ff12","yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.4 (Yoast SEO v28.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>KB5129195 Windows 11 26H2\/25H2 Out of Band Update - Deskmodder.de<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.deskmodder.de\/blog\/2026\/09\/14\/kb5129195-windows-11-26h2-25h2-out-of-band-update\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"KB5129195 Windows 11 26H2\/25H2 Out of Band Update\" \/>\n<meta property=\"og:description\" content=\"Microsoft hat ein Out of Band Update zum September Patchday bereitgestellt. Es handelt sich um die KB 5129195 und dadurch erh\u00f6ht sich die Versionsnummer auf die Windows 11 26H2 26300.9457, bzw. 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