TortoiseSVN messes up the Windows XP context menu

To fix this issue, open the registry editor using ‘regedit’ in the start menu > run command
and then browse to path,

HKEY_CLASSES_ROOT\Directory\Background\shellex\ContextMenuHandlers\TortoiseSVN

Add ‘—‘ hypens in beginning of the key as shown in the image above, save and close.

That’s all.