Port 80 Used by System, PID 4? Find the Real Owner
Port 80 held by System, PID 4? HTTP.sys is holding it for a service. netsh http show servicestate names that service; stop it, or move your own server to another port.
Informational
Dotted Lines in Excel Won’t Go Away? Turn Off Page Breaks
Dashed lines across your Excel sheet after printing or Page Setup are page breaks. Clear Show page breaks in Options, Advanced, for that sheet, from Normal view.
Excel Adds Quotes When You Copy? The Line Break Is Why
Excel puts quote marks around a copied cell when it holds a line break, carriage return or tab. Copy from inside the cell, paste through Word, or change the formula.
COM Port Says In Use? Free the Numbers Windows Kept
Every low COM port number marked in use? Old devices still hold them. Show hidden devices in Device Manager, uninstall the faded ports, then reset ComDB only if needed.
Windows Lowers the Volume by Itself? Check Communications
Windows lowers your music or game volume during calls? The Communications tab ducks other sounds by 80 . Set it to Do nothing, then check the call app and audio software.
USB Drive Shows Only 32 GB? Get the Full Size Back
USB stick showing 32 GB or a few MB after a Windows installer or Linux image? The rest is unallocated. Delete the small volume in Disk Management, or clean it in diskpart.
Excel Turning Long Numbers Into E+? Fix It Before You Paste
Excel shows long numbers as E+ or turns the last digits into zeros? Up to 15 digits use the custom format 0; longer codes must arrive as text, before you paste.
Excel AutoFit Row Height Not Working? Check These Cells
Excel AutoFit Row Height leaves wrapped text hidden? A manual height, merged cells, a hidden wrapped column, Fill alignment or a formula result is holding the row. Each one tested.
Narrator Keeps Turning On? Turn Off Its Shortcut
Windows Narrator keeps turning itself on? Stop it with Ctrl, Windows and Enter, then switch off Keyboard shortcut for Narrator in Settings, check a tablet volume button, and untick the sign-in boxes.
Event Viewer Says a Disk Has a Bad Block? Find Which One
Event Viewer says the device Harddisk1 DR1 has a bad block? The number is the disk number. Match it in Disk Management or Get-Disk, look up a drive that is gone in the Partition log, then test it.