All guides
Who is calling me? How to check an unknown phone number
Search the full number, check the context of the call, and use trusted public sources before calling back. Never share verification codes or banking details.
→How to calculate a percentage quickly
To calculate x% of a number, multiply the number by x and divide by 100. Example: 20% of 80 = 16.
→How to permanently delete an Instagram account
Use Meta Accounts Center and choose deactivation or deletion for the correct profile. Save anything you want to keep first.
→How to create a QR code for free
Use a stable URL, generate the QR code, and test it on more than one device before printing or publishing it.
→How to compress a PDF without ruining quality
Reduce image size moderately, then check small text and graphics before sharing. Keep the original file.
→Forgot your Google password? How to recover your account
Use Google's official account recovery flow and, if possible, a familiar device. Never give a verification code to another person.
→How to clear your browser cache
Open your browser privacy settings and clear cached files and images. Do not clear passwords or cookies unless you intend to.
→How to take a screenshot on Windows, Mac, iPhone and Android
Windows: Win + Shift + S. Mac: Shift + Cmd + 3 or 4. On phones, the shortcut depends on the model, usually the side/power button plus a volume button.
→How to convert hours to minutes and minutes to hours
Multiply hours by 60 to get minutes. Divide minutes by 60 to get hours. 2.5 hours = 150 minutes.
→How to spot a phishing email
Be cautious with artificial urgency and requests for passwords, verification codes or payments. Check the real sender address and destination domain before acting.
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