Use the System File Checker tool to repair missing or corrupted system ...
Run the System File Checker tool (SFC.exe) To do this, follow these steps: Open an elevated command prompt. To do this, do the following as your appropriate:
Zip and unzip files - Microsoft Support
To zip (compress) files. In the search box on the taskbar, type file explorer, and then select it from the list of results.Right-click the file you want to zip, and then select Send to > Compressed (zipped) folder.. To decompress files. Open File Explorer and find the compressed folder.
Update drivers manually in Windows - Microsoft Support
Before you begin. Driver updates for Windows, along with many devices, such as network adapters, monitors, printers, and video cards, are automatically downloaded and installed through Windows Update.
Codecs in Media Player - Microsoft Support
Codecs allow you to play different formats of audio and video files. Media Player supports a wide variety of codecs. Most are included out of the box; some additional codecs can be installed from the Microsoft Store.
Zip and unzip files - Microsoft Support
Press and hold (or right-click) the file or folder, select (or point to) Send to, and then select Compressed (zipped) folder. A new zipped folder with the same name is created in the same location.
REGEXEXTRACT Function - Microsoft Support
The REGEXEXTRACT function allows you to extract text from a string based on a supplied regular expression.You can extract the first match, all matches or capturing groups from the first match. Syntax. The REGEXEXTRACT function extracts strings within the provided text that matches the pattern.. The syntax of the REGEXEXTRACT function is:
Applies To: Excel for Microsoft 365, Excel for Microsoft 365 for Mac, Excel for the web
Request a refund for digital games | Xbox Support
Refunds are typically issued for requests meeting the following criteria: Requests are made within 14 days of the purchase date; Requests are for games in which you haven’t accumulated a significant amount of play time
Recover lost or deleted files - Microsoft Support
If you can't find a file on your computer or you accidently modified or deleted a file, you can restore it from a backup (if you're using Windows backup) or you can try to restore it from a previous version.Previous versions are copies of files and folders that Windows automatically saves as part of a restore point.
Free up drive space in Windows - Microsoft Support
Note: If it’s been fewer than 10 days since you upgraded to Windows 10, your previous version of Windows will be listed as a system file you can delete.If you need to free up drive space, you can delete it, but keep in mind that you'll be deleting your Windows.old folder, which contains files that give you the option to go back to your previous version of Windows.
Fix problems that block programs from being installed or removed
Note: Use these steps for Windows programs.If you're having problems with an app you got from Microsoft Store, go to Fix problems with apps from Microsoft Store.