Windows registry delete value oddity

Ruby
1

Say I have four registry values under the same key with these names:

  1. ‘this_text’
  2. ‘this_text1’
  3. ‘this_text2’
  4. ‘this_text3’

When I run the script below, two of the values will be deleted. When I
run it again, one value will be deleted. On the third run, the last
value will be deleted. I don’t understand why all of the values are not
deleted on the first run.

Win32::Registry::HKEY_LOCAL_MACHINE.open(key,
Win32::Registry::KEY_ALL_ACCESS) do |reg|

reg.each_value do |name, type, data|

if name.include?('this_text')

  reg.delete_value(name)

end

end

end

Could someone point out what I’m doing wrong?

Thanks,
Brad