Mapped drive asks for the password again after every restart? Windows reconnects with an old or mismatched entry in Credential Manager. Clear it, save one under the short server name, and map from a normal prompt.
You browse to a program in Open with and it never shows up in the list? Its record under HKEY_CLASSES_ROOT Applications points at an old path. Browse once, fix the path, check NoOpenWith, or use ftype.
The Read-only box on a folder fills itself in again after you clear it? On folders it is only a marker. Match the fix to what fails: ownership after a reinstall, Controlled folder access, or read-only files.
Dates left-aligned and the sort only offers A to Z? Excel stored them as text because they do not match your regional order. Run Text to Columns with no delimiter and the Date order, before you reformat.
Double-click a workbook and Excel opens your file plus an empty gray window? Something loads at startup. Check File, Info in the empty window, then Personal.xlsb in XLSTART and your COM add-ins.
Excel cells showing =A1+B1 instead of the answer? A whole sheet means Show Formulas is on; one cell means Text format or a stray apostrophe. Set General, then press F2 and Enter.
Pasted text spreading across columns in Excel? It reuses the delimiter from your last Text to Columns split. Run the wizard once with only Tab ticked, close every Excel window, or press F2 before pasting.
W moves the cursor up and the arrows type letters? Gaming keyboards swap WASD and the arrows with Fn and W. Press it again, try the other order, check the keyboard app, then rule out a Windows remap.
Touch input going to your main screen instead of the touch monitor? Windows could not pair them. Run Setup in Tablet PC Settings, slide your finger if the tap misses, and redo it when it drifts.
Windows says We can’t set up mobile hotspot? Read the reason after the message, ignore Hosted network supported No, enable the Wi-Fi Direct adapters, and change the name, password and band.