Hi CiaraFae,
When this happened to me, none of the "fixed" threads here in the forums worked for me either. I ended up going trying fixes I found in other forums and the only one that worked for me was on the EA forums. Launcher 100% fail
Failynnx posted the following:
100% halt issue
Press the Windows Key + R and type
Services.msc
Press Enter and scroll down to Bitraider mini support service stub loader ensure this is started. **
Symptom of it not started is 100% halt and a 0% halt if trying to re-install
NOTES:
** If not 'Running' rt-click on 'Bitraider mini support service stub loader' and select 'Start' from the popover menu, or if select Properties and switch to Manual if is is disabled.