https://github.com/XorTroll/uLaunch/wiki/Setup
Info copied from above link
Uninstalling
Make sure you don't remove anything else but the stuff mentioned here, in order to avoid any potential trouble!
- Remove 0100000000001001, 010000000000100B and 01008BB00013C000 folders from your CFW's titles folder.
- Remove ONLY the exefs.nsp file from 0100000000001000 folder inside titles (there might be a romfs folder, which could be a normal HOME menu theme/NXTheme)
- (Optional) if you wish to completely remove uLaunch, you can make a full reset by removing the ulaunch folder in SD root. Note that this will remove any folders or special entries/homebrew added to main menu! (only the accesses, not the homebrew itself)
or alternatively:
Disabling
The easiest way to disable uLaunch would be renaming its main file, exefs.nsp inside 0100000000001000 folder, inside your CFW's titles folder, to something like disabled.nsp (anything different will be enough).
To re-enable it again, just rename it back to exefs.nsp.