1Mark's laptop became very slow last week.
2It took five minutes just to open a document.
3First, he restarted the computer and waited.
4The laptop felt a little faster after the restart.
5Then he checked how much storage was left.
6Only two percent of the disk was free.
7Mark deleted old videos he no longer needed.
8He also emptied the recycle bin on the desktop.
9Next, he removed programs he never used.
10Some of them started every time he turned it on.
11He ran the built-in cleanup tool for an hour.
12The tool found several gigabytes of temporary files.
13Mark updated the operating system that same evening.
14The update fixed a few small security problems.
15He moved his photos to an external hard drive.
16His friend suggested adding more memory later.
17For now, the laptop opens documents in seconds.
18Mark promised to clean it once a month.
19He wrote the reminder in his calendar app.
20A little care saved him the cost of a repair.