Chrome shows Aw, Snap on every page? The error code under it names the cause: Out of Memory, security software for STATUS_INVALID_IMAGE_HASH, or an Exploit Protection entry for STATUS_ACCESS_VIOLATION.
Your desktop icons rearrange themselves after a shutdown or restart? Turn off fast startup if Restart puts them back, stop OneDrive backing up the Desktop, and right-click Refresh to save the layout.
Excel asks you to save a workbook you never changed? A volatile formula such as TODAY, NOW, OFFSET or INDIRECT marks it changed at every recalculation. Find it, swap OFFSET for INDEX, or test add-ins.
Word keeps opening Save As every time you click Save, and the document never saves? Save a copy as .doc or with Maintain compatibility, find the damaged part, or turn off Allow background saves.
Files still sync but File Explorer shows no OneDrive status column or check marks? Reset OneDrive with onedrive.exe /reset, which keeps your files. Badges missing only on icons mean too many overlay handlers.
Your Command Prompt output stops until you press Enter? Select in the title bar means a QuickEdit click began a text selection, which pauses the program. Press Esc, turn QuickEdit off, or use Windows Terminal.
Your Mac keeps asking for the login keychain password and rejects your Mac password? The keychain is still locked with your old one. Type the old password, reset the keychain if it is gone, or set it from Terminal.
Your laptop screen dims on dark windows and brightens on white pages? Windows has a content brightness setting and your graphics driver has its own. Turn off both, and check the monitor too.
Command-Tab shows the app switcher on your other screen? It follows the Dock, not the main display. Wake the Dock where you work, show the switcher on every screen with one Terminal line, or move the Dock to a side edge.
7-Zip gone from the right-click menu? On Windows 11 it sits under Show more options. If it is missing there too, tick the integrate option, install the 64-bit 7-Zip and remove a leftover 32-bit copy.