If your Screenshots folder gets full of stuff you don't want, and you've dumped it, but you'd like to reset the counter for their numbers, here's how....
Let's begin by making a shortcut to the Registry Editor like this:-
right-click an empty spot on your desktop, and in the little menu, choose "New" and then choose "shortcut". When the new window for this opens, in that blank line type in %windir%\system32\regedt32.exe and then down below, click on Next. Erase whatever is in that name line, and call it Registry Edit. Click Finish, you're done. If you like, (and I did this) right-click your new shortcut, and then choose Pin to Taskbar. Now, we're ready to get into Registry. And be careful here, because boo-boos can mean disaster.
Use you new shortcut to open the Registry Editor. Now in the left-hand pane, navigate to ->
HKey Current User>Software>Microsoft>Windows>Current Version>Explorer. Click that word Explorer to show you the list in the right-hand (actions) pane, and look for the Dword named ScreenshotIndex. Right-click that, and from the menu, choose the top item, Modify. When you click that, you get another little window which will show you a Value, usually highlighted in blue. Erase that value already there, and replace it with 01 to start the counting all over again from one. Click OK, and you're done. You can close Registry Editor. Here's a couple of screenshots to help you....
HKey Current User>Software>Microsoft>Windows>Current Version>Explorer. Click that word Explorer to show you the list in the right-hand (actions) pane, and look for the Dword named ScreenshotIndex. Right-click that, and from the menu, choose the top item, Modify. When you click that, you get another little window which will show you a Value, usually highlighted in blue. Erase that value already there, and replace it with 01 to start the counting all over again from one. Click OK, and you're done. You can close Registry Editor. Here's a couple of screenshots to help you....
