Something I do on a regular basis is check for and install new updates for the apps and operating system in my 4 PC's.
I also keep a backup copy of the current versions so they're readily available when needed.
Unfortunately, the majority of PC users don't know how to or are unwilling to keep their PC up-to-date.
This eventually results in their PC being loaded with several outdated apps and an outdated operating system and increased vulnerability.
Most of the PC servicing that I do involves updating its apps and its operating system.
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