Tech Self-Sufficiency · Lesson 4 of 8 · 13 min
Fixing common problems yourself: storage full, slow laptop, frozen apps
At home someone else may have fixed things for you. On your own, most tech problems can be solved in a few minutes with a calm, step-by-step routine, before you pay anyone or panic before a deadline.
First rule: save, then restart
- If an app is struggling but still responding, save your work and close it normally before anything else.
- Restarting clears many temporary glitches: Microsoft lists restarting and closing unused programs among its first fixes for a slow PC.
- On Android, Google suggests holding the power button for about 30 seconds until the phone restarts if it is unresponsive.
- Check for updates for the operating system and the problem app; Google and Microsoft both put updates near the top of their fix lists.
Frozen app on a laptop
- Mac: first try Command and Q to quit normally (Apple).
- Mac: if that fails, press Option, Command and Esc together, select the app and click Force Quit (Apple).
- Mac: if the whole computer will not respond, hold the power button for up to 10 seconds until it turns off, then turn it on again (Apple).
- Windows: press Ctrl, Shift and Esc to open Task Manager, select the app marked Not responding and click End task (Computer Hope).
- Force quitting can lose unsaved work, so use it only when the app is truly stuck (Computer Hope).
Phone storage full
- iPhone: go to Settings, General, then iPhone Storage to see which apps and content use the most space and any recommendations (Apple).
- iPhone: offloading an app frees the space it uses but keeps its documents and data; deleting removes both (Apple).
- Android: in Files by Google, use Clean to clear junk files, delete duplicates, remove unused apps and delete old screenshots (Google).
- Videos are often among the biggest files: once they are safely backed up, delete them from the phone.
- Apple notes that the phone removes cached and temporary files automatically when it needs more space, so do not waste time hunting for them.
Slow Windows laptop: a checklist
- Install Windows updates (including optional driver updates), then restart (Microsoft).
- Close unused apps and browser tabs; too many open tabs is a common cause.
- Check free space in Settings, then Storage, and use Storage Sense or Disk Cleanup to remove temporary files (Microsoft).
- Uninstall apps you no longer use, and move rarely used files to an external drive (Microsoft).
- Turn off apps you do not need at start-up; if one keeps returning, run a malware scan (Microsoft).
- Run a Windows Security quick scan, then an advanced scan if needed (Microsoft).
Knowing when to stop
- If a fix needs a factory reset, back up first: Google warns a factory reset erases all data and apps.
- Do not download 'cleaner' or 'speed booster' apps from pop-ups or adverts; use the built-in tools above.
- If the same problem returns after restarts, updates and freeing space, contact your university IT service desk, which is usually free for students.
- Write down what you tried and any error message: it makes getting help much faster.
Practise in real life
Tick each one off when you have done it.
- Check your phone's storage screen and free up at least 1 GB using the built-in recommendations.
- Practise the force-quit shortcut on your laptop with a harmless app (such as a calculator) so you remember it under pressure.
- Review the apps that launch when your laptop starts and turn off any you do not need.
Remember
- Save, restart and update fix a surprising number of problems.
- Mac: Option Command Esc. Windows: Ctrl Shift Esc.
- Offload or delete big apps and videos once they are backed up.
- Use built-in tools, not pop-up cleaner apps; ask IT if problems persist.
Note: Steps vary by device model and software version. Computer Hope is a reputable independent help site rather than Microsoft itself; Task Manager labels may differ slightly between Windows versions.
Check yourself
1. What keyboard shortcut opens the Force Quit window on a Mac?
2. What is the difference between offloading and deleting an app on an iPhone?
3. What is a risk of ending a task in Windows Task Manager?
4. Which of these does Microsoft suggest for a slow Windows PC?
5. Before doing a factory reset on an Android phone, what must you do?
Sources
- Apple Support: How to force an app to quit on Mac
- Computer Hope: What is End Task?
- Microsoft Support: Tips to improve PC performance in Windows
- Apple Support: How to check the storage on your iPhone and iPad
- Files by Google Help: How to use Files by Google
- Google Android Help: Restart, update apps and check for Android updates