Alkaline hard surface cleaners comprising alkylpyrrolidones

An alkaline liquid hard surface cleaning composition comprising from 0.01% to 15% by weight of a surfactant system, wherein the surfactant system comprises:

• (a) from 1.0% to 3% by weight of the alkaline liquid hard surface cleaning composition of N-octyl-2-pyrrolidone;
• (b) from 0.05% to 5.0% by weight of the alkaline liquid hard surface cleaning composition of an amine oxide surfactant having the formula R1R2R3NO where:
• R1 is a hydrocarbon chain having from 8 to 16 carbon atoms,
• R2 is a hydrocarbon chain having from 1 to 4 carbon atoms, and
• R3 is a hydrocarbon chain having from 1 to 4 carbon atoms;
• (c) from 1.0% to 10% by weight of the alkaline liquid hard surface cleaning composition of ethoxylated alcohol nonionic surfactant having the formula RO-(A)nH where:
• R is a C8 to C12 alkyl chain,
• A is an ethoxy unit, and
• n is from 5 to 10;
• and
• (d) from 0.05% to 5% by weight of the alkaline liquid hard surface cleaning composition of polycarboxylated anionic surfactant, where the polycarboxylated anionic surfactant has the formula R—O—(CH(x)-CH(y)-O)n—R1 where:
• R is a hydrocarbon group having from 6 to 16 carbon atoms,
• x and y are each independently selected from the group consisting of hydrogen, methyl, and succinic acid radicals,
• at least one x or y moiety per molecule is a succinic acid radical,
• n ranges from 1 and 60, and
• R1 is a hydrocarbon group having from 1 to 8 carbon atoms;
• wherein the alkaline liquid hard surface cleaning composition has a pH of from 10 to 11, measured on the neat alkaline liquid hard surface cleaning composition, at 25° C.