1. Use the Microsoft Program Install and Uninstall Troubleshooter

Navigate to the folder containing GoogleDriveSetup.exe (usually Downloads).

: Cached files remaining inside your hidden user directories. Step 1: Kill All Remaining Google Processes

If a previous uninstallation was interrupted, or if a background process was using file synchronization systems during the removal, Windows leaves behind "ghost" records. The installer detects these fragments, assumes an active instance is running or corrupted, and halts the setup to prevent data corruption. Step 1: Wipe Out Residual Google Drive Folders

The error message "A partially deleted previous installation was detected" is a signal that Windows still holds onto the digital ghost of a previous Google Drive installation. While it can be a deeply frustrating roadblock, it is almost always surmountable. By systematically working through the steps outlined here—starting with the basic manual cleanup and escalating to Safe Mode, the Microsoft troubleshooter, or registry edits—you can definitively clear the path for a fresh, stable installation.