question: the european personnel selection office (epso) organises 'open competitions' to select personnel for permanent and non permanent positions.
Capitalize this past sentence correctly.
A: The European Personnel Selection Office (EPSO) organises 'open competitions' to select personnel for permanent and non permanent positions.

question: home english intel core i9-8950hk: the company's most powerful laptop chip yet
Capitalize this past sentence correctly.
A: Home ENGLISH Intel Core i9-8950HK: The company's most powerful laptop chip yet

question: if you receive a spam mail that is not detected, click a single button, and the spam mail is removed from the rest of the 8,751,290 spamfighters in 238 countries/areas in seconds.
Capitalize this past sentence correctly.
A: If you receive a spam mail that is not detected, click a single button, and the spam mail is removed from the rest of the 8,751,290 SPAMfighters in 238 countries/areas in seconds.