diff --git a/chapters/software-stack/libc/drills/tasks/libc/support/Makefile b/chapters/software-stack/libc/drills/tasks/libc/support/Makefile
deleted file mode 100644
index 669ca95a04..0000000000
--- a/chapters/software-stack/libc/drills/tasks/libc/support/Makefile
+++ /dev/null
@@ -1,23 +0,0 @@
-CFLAGS = -Wall
-LDFLAGS = -static
-
-.PHONY: all clean
-
-all: hello main_printf main_string memory vendetta
-
-hello: hello.o
-
-main_printf: main_printf.o
-
-main_string: main_string.o
-
-memory: memory.o
-
-vendetta: vendetta.o
-
-clean:
-	-rm -f hello hello.o
-	-rm -f main_printf main_printf.o
-	-rm -f main_string main_string.o
-	-rm -f memory memory.o
-	-rm -f vendetta vendetta.o
diff --git a/chapters/software-stack/libc/drills/tasks/libc/support/hello.c b/chapters/software-stack/libc/drills/tasks/libc/support/hello.c
deleted file mode 100644
index 960fc0d963..0000000000
--- a/chapters/software-stack/libc/drills/tasks/libc/support/hello.c
+++ /dev/null
@@ -1,20 +0,0 @@
-// SPDX-License-Identifier: BSD-3-Clause
-
-#include <unistd.h>
-
-int main(void)
-{
-	char buffer[128];
-	ssize_t nread;
-
-	write(1, "Hello, world!\n", 14);
-	write(1, "Bye, world!\n", 12);
-
-	nread = read(0, buffer, 128);
-	if (nread > 0)
-		write(1, buffer, nread);
-
-	pause();
-
-	return 0;
-}
diff --git a/chapters/software-stack/libc/drills/tasks/libc/support/main_printf.c b/chapters/software-stack/libc/drills/tasks/libc/support/main_printf.c
deleted file mode 100644
index d88f1e52d0..0000000000
--- a/chapters/software-stack/libc/drills/tasks/libc/support/main_printf.c
+++ /dev/null
@@ -1,26 +0,0 @@
-// SPDX-License-Identifier: BSD-3-Clause
-
-#include <stdio.h>
-#include "string.h"
-
-static const char src[] = "warhammer40k";
-static char dest[128];
-
-int main(void)
-{
-	printf("[before] src is at %p, len is %lu, content: \"%s\"\n", src, os_strlen(src), src);
-	printf("[before] dest is at %p, len is %lu, content: \"%s\"\n", dest, os_strlen(dest), dest);
-
-	printf("copying src to dest\n");
-	os_strcpy(dest, src);
-
-	printf("[after] src is at %p, len is %lu, content: \"%s\"\n", src, os_strlen(src), src);
-	printf("[after] dest is at %p, len is %lu, content: \"%s\"\n", dest, os_strlen(dest), dest);
-
-	printf("a");
-	printf("b");
-	fflush(stdout);
-	printf("c\n");
-
-	return 0;
-}
diff --git a/chapters/software-stack/libc/drills/tasks/libc/support/main_string.c b/chapters/software-stack/libc/drills/tasks/libc/support/main_string.c
deleted file mode 100644
index 9113b0a190..0000000000
--- a/chapters/software-stack/libc/drills/tasks/libc/support/main_string.c
+++ /dev/null
@@ -1,17 +0,0 @@
-// SPDX-License-Identifier: BSD-3-Clause
-
-#include <string.h>
-#include <unistd.h>
-
-static const char src[] = "warhammer40k\n";
-static char dest[128];
-
-int main(void)
-{
-	strcpy(dest, src);
-
-	write(1, "Destination string is: ", 23);
-	write(1, dest, strlen(dest));
-
-	return 0;
-}
diff --git a/chapters/software-stack/libc/drills/tasks/libc/support/memory.c b/chapters/software-stack/libc/drills/tasks/libc/support/memory.c
deleted file mode 100644
index 4758e3163d..0000000000
--- a/chapters/software-stack/libc/drills/tasks/libc/support/memory.c
+++ /dev/null
@@ -1,17 +0,0 @@
-// SPDX-License-Identifier: BSD-3-Clause
-
-#include <stdlib.h>
-
-int main(void)
-{
-	void *p;
-
-	/* TODO: Use malloc() to allocate memory of different sizes.
-	 * Store result in p.
-	 * Use free() to deallocate memory.
-	 * Use ltrace and strace command line tools to monitor library
-	 * and system calls.
-	 */
-
-	return 0;
-}
diff --git a/chapters/software-stack/libc/drills/tasks/libc/support/vendetta.c b/chapters/software-stack/libc/drills/tasks/libc/support/vendetta.c
deleted file mode 100644
index 65cd97de52..0000000000
--- a/chapters/software-stack/libc/drills/tasks/libc/support/vendetta.c
+++ /dev/null
@@ -1,27 +0,0 @@
-// SPDX-License-Identifier: BSD-3-Clause
-
-#include <stdio.h>
-#include <unistd.h>
-#include <sys/types.h>
-#include <fcntl.h>
-#include <math.h>
-
-int main(void)
-{
-	/*
-	 * TODO 12: Use standard C library functions.
-	 * Be as creative as you can.
-	 */
-	int fd;
-	FILE *f;
-
-	fd = open("a.txt", O_RDWR | O_CREAT, 0644);
-	close(fd);
-
-	f = fopen("a.txt", "w");
-	fclose(f);
-
-	printf("sin(0): %f, sin(PI/2): %f\n", sin(0), sin(M_PI/2));
-
-	return 0;
-}