Super glue typically sticks better than multi-purpose glue. Super glue forms a strong bond quickly and is designed to adhere to a variety of materials, including plastic, metal, and glass. Multi-purpose glue may be more versatile in terms of the materials it can bond, but it generally does not create as strong or fast of a bond as super glue. **

Expired multi-purpose solutions for contact lenses should not be used as they may no longer be effective in cleaning and disinfecting the lenses. It is recommended to dispose of expired solutions according to the manufacturer's instructions, which may include pouring the solution down the drain and recycling the plastic bottle. It is important to always check the expiration date of contact lens solutions and to replace them as needed to ensure the safety and effectiveness of the product. **

The keyboard may not work after cleaning due to moisture or liquid residue left on the keys or inside the keyboard. This can cause the electrical connections to short circuit or malfunction. Additionally, if the keyboard was not completely dry before being plugged back in, it could cause a short circuit. It's important to ensure that the keyboard is completely dry before attempting to use it again after cleaning. **

If the keyboard stops working after cleaning, the first step is to unplug the keyboard and try to restart your computer. If that doesn't work, check the connection between the keyboard and the computer to ensure it is secure. You can also try using a different USB port or connecting the keyboard to another computer to see if it works. If none of these steps resolve the issue, it may be necessary to replace the keyboard. **

To clean a keyboard from dust, you can start by turning it upside down and gently tapping the back to dislodge any loose debris. Then, use a can of compressed air to blow out any remaining dust from between the keys. For a deeper clean, you can use a small brush or cotton swabs dipped in isopropyl alcohol to carefully clean the keycaps and the spaces between them. It's important to be gentle and avoid using too much liquid to prevent damage to the keyboard. **

No, the keys of the laptop keyboard are not broken after cleaning. Cleaning the keyboard should not cause any damage to the keys as long as it is done carefully and gently. It is important to use the appropriate cleaning tools and methods to avoid any potential damage to the keys. If the keys are not working properly after cleaning, it may be due to other issues and should be assessed by a professional. **

Isopropyl alcohol is commonly used for cleaning computers. It is effective in removing dust, dirt, and fingerprints from computer surfaces without causing damage. Isopropyl alcohol evaporates quickly, making it a popular choice for cleaning electronic devices. It is important to use a soft, lint-free cloth when applying isopropyl alcohol to avoid scratching the computer's surface. **

The PC may not recognize the mouse and keyboard after cleaning due to several reasons. One possibility is that the cleaning process may have caused damage to the connectors or the internal components of the mouse and keyboard. Another reason could be that the cleaning process may have caused a disconnection or loosening of the cables connecting the mouse and keyboard to the PC. Additionally, the cleaning process may have inadvertently changed the settings or drivers of the mouse and keyboard, causing them to not be recognized by the PC. **