Getting files back
A folder dropped into the wrong place is not lost. Undo works if you act straight away, and the folder it landed in leaves a clue you can follow when it doesn't.
If you dragged a folder by mistake a moment ago, click a Finder window and open the Edit menu. The first item should read Undo Move of "Folder name". Choose it, or press ⌘Z, and the folder goes back where it was. Apple's shortcut list describes ⌘Z as undoing the previous command, and ⇧⌘Z redoes it.
Read that label before you choose it. If you've renamed or moved something else since, the Edit menu names that action instead, and undoing it won't bring your folder back. Finder's undo history lives only while Finder is running, so after a relaunch or a restart you'll need to find the folder by hand.
A drag that ends on another folder drops the first folder inside it. So the folder is most likely in one of the folders you dragged across, usually the one under the pointer when you let go. Three ways to find it, quickest first.
A move changes dates in a pattern you can use. In a test for this guide, moving a folder within one disk left the moved folder's own modified date alone, but gave a new modified date to the folder it landed in and to the folder it came from. So open the folder where it used to be, switch to list view (⌘2) and sort by Date Modified. The folder you dropped it onto, if it sits beside the original spot, comes to the top with a time that matches your slip. Open it and your folder is inside.
The same test showed the moved folder's date added changing to the moment of the move. Date Added records when an item arrived in its current folder, so once you're looking in the right place, sorting by Date Added puts it first.
Press ⌘F in Finder, type part of the folder's name, and choose This Mac as the search scope, since the folder is no longer in the one you're looking at. Terminal can search as well; both commands only read:
mdfind -name "Tax 2025"
find ~ -maxdepth 4 -type d -iname "*tax*" -not -path "*/Library/*" 2>/dev/nullmdfind asks Spotlight's index and answers at once. find walks the folders itself, so it still works when Spotlight has missed something, and -maxdepth 4 stops it wandering too deep. Both print full paths.
If the folder seems to have vanished, a drop on the Trash icon in the Dock sends it there. Open the Trash, Control-click the folder and choose Put Back to return it to where it came from. Finding files in the Trash helps with a crowded Trash.
These sit directly in your home folder, and the sidebar and Dock point at them. If one got dragged inside another folder, drag it back to your home folder: Go > Home or ⇧⌘H opens it. Then check that its sidebar entry still opens it.
If the sidebar entry went stale, Control-click it and choose Remove from Sidebar, then select the folder in its proper place and press ⌃⌘T, which Apple's shortcut list gives for adding the selected item to the sidebar. For the Dock, drag the folder to the right-hand end of the Dock, near the Trash. Whether an existing Dock stack follows a moved folder wasn't tested for this guide, so if yours opens the wrong thing, remove it and add it again.
Move versus copy explains that a drag within one disk moves an item, while a drag to another disk copies it. So a mistaken drop between two folders on the same drive leaves nothing behind in the old place: follow the folder, don't look for a duplicate.
If you remember part of the name, type folder: with it, such as folder:tax, and the result shows the folder it now sits in, right under the name. If the name is the problem, folder: dm:today lists folders modified today. A folder's date changes when something is added to it, so the one you dropped it into is on that list. Everywhere needs Full Disk Access to look inside Desktop, Documents and Downloads, so if the folder should be in one of those and doesn't show, check that permission.
Click a Finder window, open the Edit menu and choose Undo Move of followed by the folder's name, or press Command-Z. It only works while Finder still has the move in its undo history.
Sort the folder it came from by Date Modified: the folder you dropped it onto gets a fresh time. Or press Command-F, set the search to This Mac and type part of the name.
Drag it back to your home folder (Go > Home), then select it and press Control-Command-T to add it to the sidebar again if the old entry stopped working. Re-add it to the Dock by dragging it there.
Not on the same disk. In a test for this guide, the moved folder kept its own modified date, while the folder it moved into and the one it left both got new ones. Its Date Added changed to the time of the move.
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