OneLaunch is a customisation tool and browser for Windows. It is not considered a virus, but tools such as Malwarebytes classify it as a potentially unwanted program (PUP). If its toolbar has appeared on your desktop and you do not remember installing it, it may have arrived bundled with another program or after you clicked a misleading advert.
To remove it, go to Settings → Apps → Installed apps, find OneLaunch and choose Uninstall from its three-dot menu. It is worth closing its processes first, then checking for leftover files, startup entries or extensions afterwards. Here are the steps. If you are unsure which version you are using, you can check whether you have Windows 10 or Windows 11 before continuing.
How to uninstall OneLaunch and remove leftover files
- Close its processes. Press Ctrl + Shift + Esc to open Task Manager and look for names such as onelaunch.exe, OneLaunchUpdaterProxy.exe or OneLaunch Browser. Select the associated processes and click End task; if they remain active, they could prevent uninstallation.
- Uninstall the app. Open Start and go to Settings → Apps → Installed apps. Find OneLaunch, open the three-dot menu and choose Uninstall. Check for any associated apps as well. If you cannot remove it even after closing its processes, start Windows in Safe Mode and try again.
- Check for leftover files. Open Run with Windows + R, enter %APPDATA%\OneLaunch and press Enter. If the folder exists, delete its contents and the OneLaunch folder itself; repeat the check with %LOCALAPPDATA%\OneLaunch. Only delete these program folders, not their parent directories.
- Check startup entries and scheduled tasks. Return to Task Manager, open Startup apps and disable any entries that include OneLaunch. Then open Run, type taskschd.msc and go to the Task Scheduler Library. Delete only tasks identified as belonging to the program.
As an advanced check, the wikiHow guide also suggests removing the HKEY_CURRENT_USER\Software\OneLaunch registry key if it is still present. This requires care: back up the registry before making changes and do not delete any other keys. If you are unsure what you are looking at, avoid making changes by guesswork.
Check your browser extensions and settings
If OneLaunch added an extension, you will need to remove it from the relevant browser. Check every browser you use, not just your default:
- Google Chrome: open the three-dot menu and go to Extensions → Manage extensions. Find the OneLaunch extension and confirm its removal.
- Firefox: go to Add-ons and themes → Extensions and use the extension’s menu to remove it.
- Microsoft Edge: open Extensions using the puzzle-piece icon or the three-dot menu. In the associated extension’s menu, select Remove from Microsoft Edge and confirm.
Also check your homepage and default search engine, as these may have changed. You can then run a scan with a tool that detects OneLaunch as unwanted software; those cited by wikiHow include Malwarebytes, Avast, Bitdefender and McAfee. A scan can help remove traces left behind after your manual checks.
What OneLaunch does and why it can be a nuisance
OneLaunch combines a custom toolbar, a panel with shortcuts to apps and bookmarks, and a Chromium-based browser. It aims to make your desktop easier to use.
The issue is not just visual. According to the wikiHow guide, it can change default apps, interfere with search results and display pop-ups. Some users also report slowdowns and poorer performance in other apps, so if you did not knowingly install it or find its changes annoying, uninstalling it is a reasonable option.
Classification as a PUP does not mean it has been identified as a virus: it flags distribution practices or behaviour that the user may not have wanted. There are also concerns about data collection and adverts that could lead to dangerous downloads.
It may be bundled with another program in an installation package or appear after you click an advert disguised as a download button. Although its developers maintain that it requires permission, accepting additional options without reviewing them can let in an unwanted extra.
How to prevent further unwanted installations
To reduce the chances of another unexpected installation, download apps from the developer’s website or Microsoft Store and read the installer’s options. If it offers additional programs, deselect any you do not want, even if they are presented as an included benefit.
Watch out for adverts that imitate download buttons, too, and check that the website address is spelled correctly. Domains that exploit typing errors can take you to deceptive pages, while an ad blocker can help prevent accidental clicks.
