Learn how to download and install a language pack for Windows 11 or Windows 10, such as English (United States). Choose a language from the Preferred languages list and follow the steps to add it to your display language menu.

Learn how to install and configure language accessory packs for Microsoft 365 applications, including Word, Excel, Outlook, and more. Find the links to download the packs for different languages and versions of Microsoft 365.

Learn how to use the System File Checker tool (SFC.exe) to scan and restore missing or corrupted system files in Windows. Follow the steps to run the tool, view the details, and manually replace the corrupted files if needed.

You install Microsoft Message Queuing (MSMQ) Server on a computer that is running Windows 7 or that is running Windows Server 2008 R2. In this situation, when you perform lots of remote reads on the MSMQ server for some time by using another computer, MSMQ may become unresponsive and stop processing.

Learn how to install an update for Universal C Runtime (CRT) in Windows to enable applications that depend on Windows 10 CRT to run on earlier Windows operating systems. Find out the prerequisites, download links, and update details for different Windows versions.

Learn how to download and install Microsoft 365 or Office 2021 on a PC or Mac with a Microsoft account, work or school account. Find tips, troubleshooting, and activation steps for Microsoft 365 or Office products.

Learn how to use Spreadsheet Compare to find and highlight changes in formulas, cell formatting, or macros between two versions of a workbook. See how to open, run, and export the comparison results, and how to show cell formatting.

Learn how to use the Spreadsheet Inquire add-in in Excel to compare two workbooks cell by cell, analyze a workbook for problems or inconsistencies, and see links between workbooks or worksheets. The add-in also helps you clean excess cell formatting and manage passwords for protected workbooks.

The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information" section. MUM, MANIFEST, and the associated security catalog (.cat) files, are very important to maintain the state of the updated components.

Learn how the new Outlook for Windows differs from the classic Outlook in terms of features, design, and support. See a matrix of available, partially available, not supported, and upcoming features for each Outlook version.