Windows 11 Not Detecting a Second Monitor? Test It Without the Dock
Separate a projection setting from a cable, dock, USB-C port or display driver problem when a second monitor is missing in Windows 11.
Files & formats
Browse by topic or search all guides for the answer you need.
Files & formats
1–12 of 21 guides
OneDrive Not Syncing on Windows 11? Compare the Web and File Explorer
Check whether a OneDrive file is stuck uploading, hidden by your folder choices, or blocked by an account or storage issue.
Android Phone Not Charging? Check the Cable, Port and Screen
Troubleshoot a Pixel or Galaxy that will not charge. Identify a bad charging setup, a moisture warning, or a phone that rings with a blank screen.
AirDrop Not Working Between iPhone and Mac? Check the Receiving Device
Fix AirDrop when your iPhone or Mac is missing, a transfer waits for approval, or an accepted file is hard to find.
WhatsApp Backup Not Found on Android? Check the Account and Number
Restore WhatsApp chats from a Google Account backup on a new Android phone, or check why the backup is missing before retrying.
iCloud Photos Not Syncing on iPhone? Read the Library Status First
Check the Apple Account, photo-library view, and paused-sync message before turning settings off or deleting photos.
USB Drive Not Showing Up in Windows 11? Check Before Formatting
Use Disk Management to distinguish a missing drive letter from a connection or disk problem, with clear stopping points for drives containing important files.
Convert HEIC to JPG on Mac and Set iPhone to JPEG
Export existing HEIC photos as JPEG with Preview, then change the iPhone camera setting if you want future photos in JPEG.
How to Merge PDFs on Mac With Preview
Combine whole PDFs or selected pages with the Mac’s built-in Preview app, while keeping the original files intact.
How to Save a Webpage as a PDF on Computer or Android
Save a webpage through the print menu, choose the destination, and check the finished PDF for missing or clipped content.
How to Recover Deleted Photos on iPhone and Google Photos
Find Recently Deleted or Trash, restore photos that remain there, and check the right account before assuming missing pictures are gone.
iPhone Storage Full? Start With the Largest Apps and Photos
Free space on an iPhone by checking what uses it, choosing between offloading and deleting, and keeping device storage separate from iCloud.