Windows: added file-explorer cleanup guide

wiki/windows10/file-explorer.md

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+# File explorer
+
+## Cleanup
+
+The windows file explorer comes with OneDrive and Shortcuts attached to the left-hand side of the window.
+There is no easy way to remove it, so you have to make changes to the registry.
+
+### Remove Onedrive Shortcut
+
+- `win-r` - open the run command
+- insert `regedit` to the opened window
+- in the registry-editor navigate to `Computer/HKEY_CLASSES_ROOT/CLSID/018D5C66-4533-4307-9B53-224DE2ED1FE6`
+- Change `System.isPinnedToNameSpaceTree` to `0`
+
+Of course you can change it back to `1` to reenable it.
+
+### Remove Quickaccess
+
+- `win-r` - open the run command
+- insert `regedit` to the opened window
+- in the registry-editor navigate to `Computer/HKEY_LOCAL_MACHINE/SOFTWARE/Microsoft/Windows/CurrentVersion/Explorer`
+- Add a new DWORD-Entry with the name `HubMode` and set its value to `0`
+
+Of course you can change it back to `1` or just remove the entry to reenable it.