Chertograd
commented
3 years ago I came to comment this same thing.
Basically my Windows Explorer started crashing if I tried to right-click on the Quick Access bar (left side with pinned items). I did try and deselect the option in NitroShare to disable this (so that NitroShare didn't show up in the menu anymore), but the crashes kept happening.
At the beginning I wasn't even sure if it's NitroShare that was causing this but by narrowing down the problem, I figured out that it was exactly that.
Steps taken: Downloaded NirSoft ShellExView (just like @onixiya1337 ), I looked at what programs have context menu entries. I uninstalled MPC-HC (Media Player Classic - Home Cinema, no longer in developement since 2017 btw), Backup & Sync (by Google), Google Drive amongst other things.
After uninstalling and disabling stuff one by and and countless reboots, I tried disabling NitroShare's context menu and voilà: the Explorer crashes seized to exist.
So NitroShare is causing these Windows Explorer crashes when it comes to the left side of the Explorer window and disabling the context menu setting within the app doesn't help in this regard (although it does hide the icon).
Disabling this with NirSoft's ShellExView does fix the problem so I can keep using NitroShare without having crashes.
When I right click on any element in the navigation pane (bar on the left), Windows Explorer crashes. After disabling NitroShellExt with ShellExView it works fine again.