diff --git a/inc/ram_disk.h b/inc/ram_disk.h
index e789b62..2bfba97 100644
--- a/inc/ram_disk.h
+++ b/inc/ram_disk.h
@@ -6,7 +6,7 @@
 
 #define VOLUME_LABEL "Pico MC"
 
-#define DISK_BLOCK_NUM 353	 // results in 128KB ram disk (some blocks are lost due to FAT12 overhead)
+#define DISK_BLOCK_NUM 357	// results in ~128KB ram disk (some blocks are lost to FAT overhead, some due to Windows Storage Service)
 #define DISK_BLOCK_SIZE 512
 #define SECTOR_NUM DISK_BLOCK_NUM
 #define SECTOR_SIZE DISK_BLOCK_SIZE
diff --git a/src/main.c b/src/main.c
index 9b2b68d..71afbd9 100644
--- a/src/main.c
+++ b/src/main.c
@@ -42,7 +42,7 @@ int main(void) {
 		tud_task(); // tinyusb device task
 		cdc_task();
 
-		if(to_ms_since_boot(get_absolute_time()) > TUD_MOUNT_TIMEOUT && !tud_mount_status )
+		if(to_ms_since_boot(get_absolute_time()) > TUD_MOUNT_TIMEOUT && !tud_mount_status)
 			break;
 	}
 		
diff --git a/src/ram_disk.c b/src/ram_disk.c
index b957d8a..ab7656f 100644
--- a/src/ram_disk.c
+++ b/src/ram_disk.c
@@ -97,7 +97,7 @@ uint32_t RAM_disk_import_lfs_memcard() {
 		1,  // number of FAT copies
 		1,  // data alignment (in sectors)
 		0,  // number of root dir entires (default 512)
-		0   // cluster size (default, use whatever disk uses)
+		0   // cluster size (let FatFS decide)
 	};
 
 	if(FR_OK == f_mkfs("", &opt, working_buffer, WORK_BUFF_SIZE)) {