Windows
Read help article →Windows 11 will not activate: Home, Pro or Pro N?
First check whether the installed edition matches your activation key.
Sources reviewed · As of 14.10.2026
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Matching topics: 6
Office
Read help article →Office 2024 or 2021: activation after reinstalling
Reinstallation is a useful moment to check the edition, existing Office installations and delivery model.
Sources reviewed · As of 14.10.2026
Visio
Read help article →Visio asks you to remove Office: check the installation
An installation conflict calls for an accurate inventory rather than repeated installation attempts.
Sources reviewed · As of 14.10.2026
Project
Read help article →Project: why duration and finish date do not seem to match
Check calendars and scheduling before treating an unexpected duration as a program fault.
Sources reviewed · As of 14.10.2026
Windows Server
Read help article →Windows Server: reachable by IP but not by name
Separate name resolution from network connectivity. A Reddit report alone does not establish a general update-related cause.
Sources reviewed · As of 14.10.2026
Windows Server
Read help article →Server 2025 and RDP: black screen or no connection
Distinguish a connection failure from an established session whose display is not working correctly.
Sources reviewed · As of 14.10.2026
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More guides
More guides from our support section. Check the date and the relevant software version.
Visio oder Project? Diagramme und Projektplanung richtig zuordnen
Visio ordnet Informationen in Diagrammen; Project strukturiert Aufgaben, Zeit und Ressourcen. Dieser Ratgeber hilft bei der Wahl zwischen den Werkzeugen und Editionen.
Read more →Office 2024 oder Office 2021? Edition, Mac und Support verständlich vergleichen
Home & Business oder Professional Plus? Windows oder Mac? Dieser Ratgeber ordnet die Office-Editionen ein und erklärt das Supportende von Office 2021 seit dem 14. Oktober 2026.
Read more →Windows 11 Home oder Pro? Die passende Edition nach Bedarf auswählen
Welche Windows-11-Edition passt zu Ihrem PC? Dieser kompakte Entscheidungsleitfaden erklärt die wichtigsten Unterschiede und zeigt, wann Home genügt und wann Pro sinnvoll ist.
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