Protective film with adhesive layer and with separator

A protective film comprising:

• an adhesive layer-equipped film;
• and
• a separator pasted to the film,
• wherein the separator is formed of a biaxially oriented film and has first and second guide grooves that do not reach the adhesive layer,
• wherein the separator has first and second division start portions serving as a guide for separating the separator along the first guide groove, said first and second division start portions lying along a first plane which lies along an edge of the separator, said first plane being perpendicular to a direction of extent of the first guide groove, and wherein the separator further has third and fourth division start portions serving as a guide for separating the separator along the second guide groove, said third and fourth division start portions lying along a second plane which lies along the edge of the separator, said second plane being perpendicular to a direction of extent of the second guide groove,
• wherein said first and second division start portions extend from the edge of the separator toward the first guide groove, and
• wherein said third and fourth division start portions extend from the edge of the separator toward the second guide groove,
• wherein said first and second division start portions are formed in first and second positions which sandwich the first guide groove along the first plane, and
• wherein the third and fourth division start portions are formed in third and fourth positions which sandwich the second guide groove along the second plane,
• and
• the first guide groove comprises a first end and a second end, wherein the first and second division start portions are provided at the first end of the first guide groove, and
• the second guide groove comprises a third end and a fourth end, wherein the third and fourth division start portions are provided at the third end of the second guide groove, and
• the first and third ends are provided side-by-side.