Changing a will - help please?

Find a solicitor to help you are most preferred, they had all the expertise to help you. A hand writing Will not following the formality of a Will might be considered as an informal Will, it will left to the court to decide if the Will is your last Will when you die. If you are going to find a solicitor in England anyway, you can leave the Will alone until then.

The formal way to change your Will is to make an entirely new Will, your new Will must expressly revoke any old and previous Will prior to this new Will, let 2 witnesses to witness or acknowledge your signature on the Will and have the witnesses sign the Will, this usually can be easily done in a solicitor film.

As long as its signed by you and two witnesses and dated I think its ok. signatures and the date should be written under the changes made.
But check it with a solicitor, or go to a notaire in France.

New will - have it signed & dated - make sure that you mention that it supersedes the previous will and refer to the date that the previous one was signed - get 2 or 3 witnesses and have THEM go to the notary - record their names and addresses as well.

I am in the same position and have made mine online through Video Wills. Cost 20 pounds. I have had it witnessed and checked out and it seems to be perfectly legal.

As long as your new will is dated and signed in the presence of two witnesses who are not beneficiaries of the will you are ok. You should advise your executors where to find the latest will.

A handwritten will should be at the minimum notarized. The will filed with your solicitor may be binding over and above the handwritten one, as the handwritten one has no way to prove that you really wrote the will. If you cannot get a local solicitor to draw up a will for you, use one of the many online services to make sure the forms are proper for your jurisdiction, and have it notarized. Even this may be challenged in court, though.