Resolvability and complete accumulation points

We prove that: I. For every regular Lindelöf space $X$ if $\mathrm{\mid }X\mathrm{\mid }=\mathrm{\Delta }(X)$ and $\mathrm{c}\mathrm{f}\mathrm{\mid }X\mathrm{\mid }\mathrm{\ne }\omega$, then $X$ is maximally resolvable; II. For every regular countably compact space $X$ if $\mathrm{\mid }X\mathrm{\mid }=\mathrm{\Delta }(X)$ and $\mathrm{c}\mathrm{f}\mathrm{\mid }X\mathrm{\mid }=\omega$, then $X$ is maximally resolvable. Here $\mathrm{\Delta }(X)$, the dispersion character of $X$, is the minimum cardinality of a nonempty open subset of $X$. Statements I and II are corollaries of the main result: for every regular space $X$ if $\mathrm{\mid }X\mathrm{\mid }=\mathrm{\Delta }(X)$ and every set $A\subseteq X$ of cardinality $\mathrm{c}\mathrm{f}\mathrm{\mid }X\mathrm{\mid }$ has a complete accumulation point, then $X$ is maximally resolvable. Moreover, regularity here can be weakened to $\pi$-regularity, and the Lindelöf property can be weakened to the linear Lindelöf property.