Hello Alex,
Thank you for posting question on Microsoft Windows Forum.
Based on your query of accidentally deleting File explorer and being unable to find a way to reinstall it. Well! It is indeed impossible to "uninstall" File Explorer because it is a core part of the Windows operating system.
If File Explorer is "gone," you have probably either closed the system process (causing your taskbar/desktop to disappear) or probably deleted the shortcut icon.
The following are some suggestions to retrieve the File explorer.
- If your taskbar, desktop icons, and wallpaper have disappeared, the explorer.exe process has crashed or stopped. You might need to restart it. Press Ctrl + Shift + Esc on your keyboard to open the Task Manager. If the window looks small, click More details at the bottom. Click File in the top-left corner and select Run new task. Type explorer.exe in the box. Check the box for Create this task with administrative privileges. Click OK.
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- If you click File Explorer and it opens but immediately closes or gives an error, your system files might be corrupted. The suggestion is to run the System File Checker by pressing Ctrl + Shift + Esc to open Task Manager. Click File > Run new task. Type cmd and check the box Create this task with administrative privileges. In the black window that appears, run the this command sfc /scannow .Wait for the scan to finish (it may take 10-15 minutes). Windows will attempt to find and repair any missing system files automatically.
- Try to create a Desktop Shortcut. Right-click on an empty space on your desktop. Select New > Shortcut. In the location box, type exactly: C:\Windows\explorer.exe Click Next, name it "File Explorer," and click Finish.
Hope the above information is helpful! If it is. Free feel to hit "Accepted" for benefitting others in community having the same issue too.