GNOME looks like it is touch friendly, but try to run it on a tablet and it’s really fucking not. I had to DL a bunch of tweaks tools to make it useable at all and now the tablet breaks whenever there’s a Gnome update that the tweaks weren’t designed for.
NEVER run a command you don’t know the purpose of. That being said, “sfc” stands for “System File Checker.” It is a utility that can help restore corrupted windows files. sfc /scannow
checks your protected files and restores corrupted files from a local cache. The process can take some time and you MUST let it finish it’s entirely.
In conclusion, this command is generally safe to run.
If you only have 10 minutes left on a break you can save the half hour read till later.