diff --git a/src/Picocrypt.go b/src/Picocrypt.go
index 57e99dd..2466fd2 100644
--- a/src/Picocrypt.go
+++ b/src/Picocrypt.go
@@ -30,7 +30,6 @@ import (
 	"os"
 	"path/filepath"
 	"regexp"
-	"runtime"
 	"strconv"
 	"strings"
 	"time"
@@ -131,9 +130,7 @@ var startLabel = "Start"
 var mainStatus = "Ready"
 var mainStatusColor = WHITE
 var popupStatus string
-
-var temporaryZip bool
-var externalDst bool
+var usingTempZip bool
 
 // Progress variables
 var progress float32
@@ -637,7 +634,7 @@ func draw() {
 						giu.Checkbox("Paranoid mode", &paranoid),
 						giu.Tooltip("Provides the highest level of security attainable"),
 						giu.Dummy(-170, 0),
-						giu.Style().SetDisabled(recursively).To(
+						giu.Style().SetDisabled(recursively || !(len(allFiles) > 1 || len(onlyFolders) > 0)).To(
 							giu.Checkbox("Compress files", &compress).OnChange(func() {
 								if !(len(allFiles) > 1 || len(onlyFolders) > 0) {
 									if compress {
@@ -767,21 +764,6 @@ func draw() {
 							} else {
 								file += filepath.Ext(inputFile) + ".pcv"
 							}
-							externalDst = false
-							GOOS := strings.ToLower(runtime.GOOS)
-							if strings.HasPrefix(GOOS, "windows") {
-								if !strings.HasPrefix(file, "C:") {
-									externalDst = true
-								}
-							} else if strings.HasPrefix(GOOS, "linux") {
-								if strings.Contains(file, "/media/") || strings.Contains(file, "/mnt/") {
-									externalDst = true
-								}
-							} else if strings.HasPrefix(GOOS, "darwin") {
-								if strings.Contains(file, "/Volumes/") {
-									externalDst = true
-								}
-							}
 						} else {
 							if strings.HasSuffix(inputFile, ".zip.pcv") {
 								file += ".zip"
@@ -814,18 +796,10 @@ func draw() {
 					).Build()
 					return
 				}
-				if temporaryZip && externalDst {
-					giu.Style().SetColor(giu.StyleColorText, YELLOW).To(
-						giu.Label("Warning: unencrypted temp files will be created"),
-					).Build()
-				} else if temporaryZip {
+				if usingTempZip {
 					giu.Style().SetColor(giu.StyleColorText, WHITE).To(
 						giu.Label("Ready (info: will create a temporary zip file)"),
 					).Build()
-				} else if externalDst {
-					giu.Style().SetColor(giu.StyleColorText, WHITE).To(
-						giu.Label("Ready (info: target may be an external drive)"),
-					).Build()
 				} else {
 					giu.Style().SetColor(giu.StyleColorText, mainStatusColor).To(
 						giu.Label("Ready"),
@@ -1068,7 +1042,7 @@ func onDrop(names []string) {
 		// Set the input and output paths
 		inputFile = filepath.Join(filepath.Dir(names[0]), "Encrypted") + ".zip"
 		outputFile = inputFile + ".pcv"
-		temporaryZip = true
+		usingTempZip = true
 	}
 
 	// Recursively add all files in 'onlyFolders' to 'allFiles'
@@ -2357,8 +2331,7 @@ func resetUI() {
 	mainStatus = "Ready"
 	mainStatusColor = WHITE
 	popupStatus = ""
-	temporaryZip = false
-	externalDst = false
+	usingTempZip = false
 
 	progress = 0
 	progressInfo = ""