If you need Windows for a PC build, Microsoft charges a whopping $139. Here's how to get the OS for much cheaper or -- even free.
Sometimes, the best fix is a fresh start. Whether you're having technical issues or errors, or things just aren't running right, it may be time to reset Windows 10.
Have two sets of data with one common field? Learn how to combine data from different spreadsheets using the VLOOKUP function.
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