Is it a Virus?
✔ NO - Safe
Must be in C:\Windows\System32\drivers\kasper-driver-component.sys; signed by Kaspersky Lab.
Warning
Many kernel drivers and protection components may run concurrently
Kernel protection loads multiple modules during startup and updates; this is expected behavior.
Can I Disable?
✔ YES
Disabling driver reduces protection; use Kaspersky UI to toggle protection features instead.
What is kasper-driver-component.sys?
kasper-driver-component.sys is a kernel-mode driver installed by Kaspersky Lab as part of its security suite. It operates in the Windows kernel to monitor and enforce protective actions, coordinate with user-space protection services, and enable real-time decision making for threats at the system level.
Loaded at boot, this driver runs in kernel space and communicates with the protection service in user mode to apply security policies. It handles file-system events, process monitoring, and policy updates, while maintaining a lightweight footprint.
Quick Fact: Kaspersky's driver architecture uses kernel-mode components to provide fast, low-latency protection and rapid response to threats.
Types of Kaspersky Driver Components
- Driver Loader: Loads at startup to initialize kernel protection (one or more instances)
- Kernel Monitor: Monitors file-system and process activity in real-time
- Policy Communicator: Exchanges security policies and updates with user-mode protection services
- Event Dispatcher: Sends security events and logs to the UI and management consoles
- Update Handler: Applies threat signatures and policy updates without reboot
- Recovery & Fallback: Offers safe-mode or degraded-protection paths if initialization fails
Is kasper-driver-component Safe?
Yes, kasper-driver-component.sys is safe when it's the legitimate file installed by Kaspersky Lab and signed by Kaspersky Lab.
Is kasper-driver-component.sys a Virus or Malware?
The real kasper-driver-component.sys is NOT a virus. It is a kernel driver used by Kaspersky protection components. Malware may mimic names, so verification is important.
How to Tell if kasper-driver-component.sys is Legitimate or Malware
- File Location:: Must be in C:\Windows\System32\drivers\kasper-driver-component.sys or C:\Program Files\Kaspersky Lab\KES\drivers\kasper-driver-component.sys. Any other location is suspicious.
- Digital Signature:: Right-click the file in Explorer → Properties → Digital Signatures. Should show 'Kaspersky Lab' as the signer.
- Resource Usage:: Normal usage is 0-4% CPU and 20-80 MB memory. Consistently high usage without protection activity is suspicious.
- Behavior:: Should load as part of the Kaspersky protection stack during boot and run with system protection enabled.
Red Flags: If kasper-driver-component.sys is located outside expected folders (e.g., Temp or AppData), lacks a valid signature, or loads without a legitimate Kaspersky installation, run a full system scan and consider reinstalling Kaspersky.
Why Is kasper-driver-component.sys Running on My PC?
Kaspersky Driver Component runs to support kernel-level protection and rapid threat response. It activates during system startup and continuously monitors for suspicious activity as part of the protection stack.
Reasons it's running:
- System Boot and Initialization: The driver loads during Windows startup to initialize kernel protection and enable immediate monitoring from logon.
- Real-time Kernel Protection: Provides low-latency monitoring of file-system and process behavior to detect threats as they occur.
- Policy and Signature Updates: Driver reloads or updates after product updates to apply new rules and protections.
- Background Protection Tasks: Performs ongoing background checks, telemetry, and rule enforcement even when the UI is closed.
- Protection Synchronization: Coordinates with user-mode protection services to ensure consistent policy application across the system.
Can I Disable or Remove kasper-driver-component.sys?
Yes, you can disable kernel protection, but this will reduce security. Use Kaspersky's own settings to toggle protection features. Do not manually delete the driver.
How to Stop kasper-driver-component
- Disable Real-time Protection: Open the Kaspersky application and turn off Real-time Protection or select the targeted protection module you want to disable.
- Stop Related Services: Open Services (services.msc) and stop services named 'Kaspersky Protection' or 'kasper-driver-loader' if present.
- Prevent Startup: In Task Manager → Startup tab, disable any Kaspersky-related startup entries.
- Stop Background Apps: In Kaspersky settings, disable 'Continue running background apps when Kaspersky is closed' if enabled.
- Restart: Reboot the system to ensure changes take effect.
How to Uninstall Kaspersky to Remove Driver
- ✔ Windows Settings → Apps → Apps & Features → Kaspersky Endpoint Security → Uninstall
- ✔ Control Panel → Programs → Uninstall a program → Kaspersky Endpoint Security → Uninstall
- ✔ Follow on-screen prompts to complete removal and restart the computer
Common Problems: Kernel Driver Issues or High Resource Use
If kasper-driver-component.sys causes performance issues or unexpected behavior, check these common causes and solutions specific to Kaspersky kernel protection.
Common Causes & Solutions
- Excessive real-time monitoring with many active protections: Update Kaspersky to the latest build and review which protection modules are active; disable non-essential modules via the UI.
- Conflict with other security software: Temporarily disable or uninstall other security products to rule out conflicts; re-enable one product to maintain protection.
- Outdated driver or protection components: Check for product updates and apply latest definitions; reboot after update to ensure driver loads properly.
- Driver signing or integrity issues: Run a repair install of Kaspersky or reinstall the product to restore a valid driver payload.
- Windows Defender or OS security settings interference: Ensure Defender exclusions are configured for Kaspersky directories and that Defender's real-time protection settings do not block components.
- Corrupted system files affecting driver loading: Run sfc /scannow and DISM, then reinstall the Kaspersky product if issues persist.
Quick Fixes:
1. Quick Fixes:
2. 1. Open Kaspersky and review Protection settings for unnecessary modules; disable as needed
3. Update Kaspersky to the latest version and reboot
4. Run a full system scan to identify threats
5. Check Windows Defender exclusions for Kaspersky folders
6. If issues persist, reinstall Kaspersky and reboot
Frequently Asked Questions
Is kasper-driver-component.sys a virus?
No, the legitimate kasper-driver-component.sys from Kaspersky Lab is a kernel driver. Verify its location at C:\Windows\System32\drivers\kasper-driver-component.sys and confirm a valid Kaspersky digital signature.
Why is kasper-driver-component.sys using CPU?
Kernel drivers perform real-time monitoring. Some CPU usage is normal during active protection, file-system events, and updates. If usage remains high, check Kaspersky protection modules and update or reinstall if needed.
Can I delete kasper-driver-component.sys?
Deleting the driver will disable kernel protection. Uninstall Kaspersky or use the application to disable specific components rather than removing the file manually.
How do I disable kasper-driver-component.sys?
Use the Kaspersky UI to disable Real-time Protection or specific kernel modules. Do not delete the driver manually; use Windows Services and startup settings only if advised by official support.
Why does it load at startup?
Kaspersky kernel protection loads at startup to provide immediate protection from boot and to enforce security policies from system initialization.
How can I verify kasper-driver-component.sys is legitimate?
Check file location (C:\Windows\System32\drivers\kasper-driver-component.sys), verify digital signature shows Kaspersky Lab, and ensure the product is installed from a trusted source.