diff --git a/process/process_default.go b/process/process_default.go
index 48f32cd0..5266462b 100644
--- a/process/process_default.go
+++ b/process/process_default.go
@@ -2,21 +2,6 @@
 
 package process
 
-// IsUser returns whether the process is run by a normal user.
-func (p *Process) IsUser() bool {
-	return true
-}
-
-// IsAdmin returns whether the process is run by an admin user.
-func (p *Process) IsAdmin() bool {
-	return false
-}
-
-// IsSystem returns whether the process is run by the operating system.
-func (p *Process) IsSystem() bool {
-	return false
-}
-
 // IsKernel returns whether the process is the Kernel.
 func (p *Process) IsKernel() bool {
 	return p.Pid == 0
diff --git a/process/process_linux.go b/process/process_linux.go
index a4702588..90dcfecc 100644
--- a/process/process_linux.go
+++ b/process/process_linux.go
@@ -1,20 +1,5 @@
 package process
 
-// IsUser returns whether the process is run by a normal user.
-func (p *Process) IsUser() bool {
-	return p.UserID >= 1000
-}
-
-// IsAdmin returns whether the process is run by an admin user.
-func (p *Process) IsAdmin() bool {
-	return p.UserID >= 0 && p.UserID < 1000
-}
-
-// IsSystem returns whether the process is run by the operating system.
-func (p *Process) IsSystem() bool {
-	return p.UserID == 0
-}
-
 // IsKernel returns whether the process is the Kernel.
 func (p *Process) IsKernel() bool {
 	return p.Pid == 0
diff --git a/process/process_windows.go b/process/process_windows.go
index 31bbdc73..2a59c3d1 100644
--- a/process/process_windows.go
+++ b/process/process_windows.go
@@ -2,28 +2,11 @@ package process
 
 import (
 	"fmt"
-	"strings"
 
 	"github.com/safing/portbase/log"
 	"github.com/safing/portbase/utils/osdetail"
 )
 
-// IsUser returns whether the process is run by a normal user.
-func (p *Process) IsUser() bool {
-	return p.Pid != 4 && // Kernel
-		!strings.HasPrefix(p.UserName, "NT") // NT-Authority (localized!)
-}
-
-// IsAdmin returns whether the process is run by an admin user.
-func (p *Process) IsAdmin() bool {
-	return strings.HasPrefix(p.UserName, "NT") // NT-Authority (localized!)
-}
-
-// IsSystem returns whether the process is run by the operating system.
-func (p *Process) IsSystem() bool {
-	return p.Pid == 4
-}
-
 // IsKernel returns whether the process is the Kernel.
 func (p *Process) IsKernel() bool {
 	return p.Pid == 4