This is the 8372nd most frequent Catalan word.
desprotegeix
"Desprotegeix" means "it unprotects" or "it removes protection."
Here, 'desprotegeix' refers to the act of leaving something unprotected or exposed, which the wind does to the trees.
El fort vent desprotegeix els arbres del poble.
The strong wind exposes the trees of the village.
In this sentence, 'desprotegeix' is used to describe the process of gradually losing protection, in this case, of the paint due to deterioration.
Amb el pas dels anys, el deteriorament desprotegeix la pintura de la façana.
Over the years, deterioration leaves the façade's paint unprotected.
Here, 'desprotegeix' implies removing a protection or barrier applied to something—in this case, data files—to enable modification.