Is it possible to know who uninstalled a specific application from Windows 7 event logs?
There is no 100% way to do this, such as if it was using a custom made installer that didn't log anything, but fortunately most installers use Microsoft's installer service (MSIs). The Installer Service logs everything into the event viewer.
- Right click on "Computer" on your desktop / start menu and hit "Manage".
- Under "System Tools", expand "Event Viewer", "Windows Logs", and select "Application".
- On the right, click "Filter Current Log"
- In the new dialog, for the "Event sources" drop down list, select "MsiInstaller"
That will filter the log to any Windows installer related actions. If you know an approximate date / time you can look there. Or, you can click "Find..." on the right to try and search for a particular string. The event text will look something like this:
Windows Installer removed the product. Product Name: <product>. Product Version: <version>. Product Language: 1033. Manufacturer: <manufacturer>. Removal success or error status: 0.
Once you've found it, the user performing the action will be displayed under "User".