# Find your synths

URL: https://presetti.app/guide/library/scan-plugins

> Analyse your computer so Presetti lists every synth it can use and counts each one's presets. It takes a minute and doesn't render any audio.

Presetti can only search presets for synths it knows how to load, so the first step is to see what's on your computer.

## Run Analyse

On the **Library** tab, click **Analyse this PC**. On a Mac the button reads **Analyse this Mac**, as in the screenshots.

![Library tab on first launch, with the Analyse this PC button highlighted](https://presetti.app/guide/0.1.0.152-alpha/analyse-button.webp)

Presetti looks through your plugin folders. Synths show up in the middle list as they're found, and then each one's presets are counted. A large collection can take a few minutes. **Cancel** stops it and keeps your previous list.

A plugin that hangs or crashes while it's checked is skipped after 30 seconds and Analyse carries on, so one broken plugin doesn't stop the rest.

## Read the results

![Analyse results: four synths found, each with a preset count](https://presetti.app/guide/0.1.0.152-alpha/analyse-results.webp)

1. The left panel sums it up, for example **Found 4 instruments, 5082 presets**. Presetti calls the synths it finds instruments.
2. Each synth's row has its own preset counts, for example **0 searchable | 78 found**: Vital has 78 presets, and none are searchable yet. **Searchable** stays at 0 until you build the library.

Analyse never makes presets searchable by itself. That happens in the next step, when you [build your library](https://presetti.app/guide/library/build-library).

## If a synth is missing

Synths Presetti can't use yet are listed at the bottom with the reason. If a synth you own isn't listed at all, see [A synth isn't listed](https://presetti.app/guide/troubleshooting/synth-not-found).