How to TRIM SSD Manually
Although TRIM is enabled, it won’t TRIM your SSD immediately. SSD TRIM will be performed only when certain conditions are met. If you want to perform an SSD TRIM manually, you can do as follows:

Open Windows File Explorer.
1. Right-click your local drive and click Properties.
2. Go to the Tools tab and click the Optimize button under the Optimize and defragment drive section.
3. On the Optimize Drives window, highlight the partition that you want to TRIM and then click the Optimize button.
4. On the bottom section of the window, you can see the SSD TRIM frequency. If you want to change it, you can click Change settings. On the pop-up window, you can change to frequency to Daily, Weekly, or Monthly.