Hi Artúr Szűc
I am Dave, I will help you with this.
That indicates it s thee Windows Search process generating those crash reports.
Click your Start Button, then just type index and from the resulting list open Indexing Options
On the resulting utility, select the Advanced Tab and click the 'Rebuild' button
That will clear out the old search index and create a new one
Delete those files that are filling up your drive an fate the search index is rebuilt check if those files are not filling up your drive again.