If you have a slow hard drive and a good CPU, it makes more sense to keep your search indexing on, but otherwise it's best to turn it off. This is especially true for those with SSDs because they can read your files so quickly. For those curious, search indexing doesn't damage your computer in any way.

Should I disable Windows 10 indexing?

Generally speaking it is a good idea to turn Windows Search indexing off if you don't search often, or use a different desktop search program for that instead. Turning off indexation does not mean that Windows Search won't work at all, it just means that it may be slower when you run searches.

Does indexing slow down computer?

If you have a lower-powered computer with an older, slower hard drive, indexing can place a burden on the system resources, resulting in slower all-around performance as well. ... If you rarely search your computer for files, turning off the indexing won't impact you much at all.