Cheetah Mobile Clean Master for PC SYS ksapi_ev.sys

Download Ksapi_ev.sys and Troubleshoot BSOD Errors

Last Updated: 11/28/2023
[Reading Time Required: 3.5 minutes]

Kingsoft KSAPI Module files, such as ksapi_ev.sys, are considered a type of Win32 EXE (Dynamic link library) file. They are associated with the SYS file extension, developed by Cheetah Mobile for Kingsoft Antivirus Security System.

The initial introduction of ksapi_ev.sys released in Clean Master for PC 6 was for Windows 10 on 10/27/2017. According to our records, this release is the only version of this file offered by Cheetah Mobile.

Please continue reading to find your correct ksapi_ev.sys file version download (free), detailed file information, and SYS file troubleshooting instructions.

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File Overview


General Information ✻
File Name: ksapi_ev.sys
File Extension: SYS file extension
Description: Kingsoft KSAPI Module
Object File Type: Dynamic link library
File Operating System: Windows NT 32-bit
MIME Type: application/octet-stream
User Popularity Rating:
 
Developer and Software Information
Software Developer: Kingsoft Corporation
Software Program: Kingsoft Antivirus Security System
Legal Copyright: Copyright (C) 1998-2017 Kingsoft Corporation
File Details
Character Set: Unicode
Language Code: Neutral
File Flags: (none)
File Flags Mask: 0x003f
Entry Point: 0x1c000
Code Size: 81920
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What are ksapi_ev.sys Error Messages?


ksapi_ev.sys Blue Screen of Death (BSOD) Errors

There are a number of reasons why you could be encountering issues with ksapi_ev.sys. Most of the issues concerning sys files involve Blue Screen of Death (BSOD) errors. These types of ksapi_ev.sys errors can be cause by hardware problems, outdated firmware, corrupt drivers, or other software-related (eg. Clean Master for PC update) issues. Some of these errors include:

A problem has been detected and Windows has been shut down to prevent damage to your computer. The problem seems to be caused by the following file: ksapi_ev.sys.

:( Your PC ran into a problem that it couldn't handle, and now needs to restart. You can search for the error online: [BSOD] (ksapi_ev.sys).

<strong>STOP 0x0000001E: KMODE EXCEPTION NOT HANDLED (ksapi_ev.sys)</strong><br /><strong>STOP 0x0000007E: SYSTEM THREAD EXCEPTION NOT HANDLED (ksapi_ev.sys)</strong><br /><strong>STOP 0x0000003B: SYSTEM SERVICE EXCEPTION (ksapi_ev.sys)</strong><br /><strong>STOP 0x00000050: PAGE FAULT IN A NONPAGED AREA (ksapi_ev.sys)</strong><br /><strong>STOP 0x0000000A: IRQL NOT LESS EQUAL (ksapi_ev.sys)</strong><br /><strong>STOP 0×0000007A: KERNEL DATA INPAGE (ksapi_ev.sys)</strong>

It's Critical to Resolve Blue Screen of Death Errors

In the majority of cases, you will encounter ksapi_ev.sys BSOD errors after you've installed new hardware, software (Clean Master for PC), or performed a failed Windows Update. In other cases, software corruption caused by a malware infection can lead to ksapi_ev.sys Blue Screen of Death errors. Therefore, it's critical to make sure your anti-virus is kept up-to-date and scanning regularly.


GEEK TIP : As a rule of thumb, it's always a good idea to create a Windows "Snapshot" backup / System Restore Point before making any hardware or software changes to your computer. That way, it's very easy to restore your system in the unfortunate event you encounter a ksapi_ev.sys Blue Screen of Death error after recent changes.

Recommended Download (WinThruster): Optimize Your PC and Fix SYS File Association Errors.

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How to Fix ksapi_ev.sys Errors in 3 Steps (Time to complete: ~5-15 minutes)

If you're encountering one of the error messages above, follow these troubleshooting steps to resolve your ksapi_ev.sys issue. These troubleshooting steps are listed in the recommended order of execution.


Step 1: Restore your PC back to the latest restore point, "snapshot", or backup image before error occurred.

To begin System Restore (Windows XP, Vista, 7, 8, and 10):

  1. Hit the Windows Start button
  2. When you see the search box, type "System Restore" and press "ENTER".
  3. In the search results, find and click System Restore.
  4. Please enter the administrator password (if applicable / prompted).
  5. Follow the steps in the System Restore Wizard to choose a relevant restore point.
  6. Restore your computer to that backup image.

If the Step 1 fails to resolve the ksapi_ev.sys error, please proceed to the Step 2 below.

Step 2: If recently installed Clean Master for PC (or related software), uninstall then try reinstalling Clean Master for PC software.

You can uninstall Clean Master for PC software by following these instructions (Windows XP, Vista, 7, 8, and 10):

  1. Hit the Windows Start button
  2. In the search box, type "Uninstall" and press "ENTER".
  3. In the search results, find and click "Add or Remove Programs"
  4. Find the entry for Clean Master for PC 6 and click "Uninstall"
  5. Follow the prompts for uninstallation.

After the software has been fully uninstalled, restart your PC and reinstall Clean Master for PC software.

If this Step 2 fails as well, please proceed to the Step 3 below.

Clean Master for PC 6

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Step 3: Perform a Windows Update.

When the first two steps haven't solved your issue, it might be a good idea to run Windows Update. Many ksapi_ev.sys error messages that are encountered can be contributed to an outdated Windows Operating System. To run Windows Update, please follow these easy steps:

  1. Hit the Windows Start button
  2. In the search box, type "Update" and press "ENTER".
  3. In the Windows Update dialog box, click "Check for Updates" (or similar button depending on your Windows version)
  4. If updates are available for download, click "Install Updates".
  5. After the update is completed, restart your PC.

If Windows Update failed to resolve the ksapi_ev.sys error message, please proceed to next step. Please note that this final step is recommended for advanced PC users only.

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If Those Steps Fail: Download and Replace Your ksapi_ev.sys File (Caution: Advanced)

If none of the previous three troubleshooting steps have resolved your issue, you can try a more aggressive approach (Note: Not recommended for amateur PC users) by downloading and replacing your appropriate ksapi_ev.sys file version. We maintain a comprehensive database of 100% malware-free ksapi_ev.sys files for every applicable version of Clean Master for PC. Please follow the steps below to download and properly replace you file:

  1. Locate your Windows operating system version in the list of below "Download ksapi_ev.sys Files".
  2. Click the appropriate "Download Now" button and download your Windows file version.
  3. Copy this file to the appropriate Clean Master for PC folder location:
    Windows 10: C:\Windows\System32\drivers\
    Windows 10: C:\Program Files (x86)\cmcm\Clean Master\
  4. Restart your computer.

If this final step has failed and you're still encountering the error, you're only remaining option is to do a clean installation of Windows 10.


GEEK TIP : We must emphasize that reinstalling Windows will be a very time-consuming and advanced task to resolve ksapi_ev.sys problems. To avoid data loss, you must be sure that you have backed-up all of your important documents, pictures, software installers, and other personal data before beginning the process. If you are not currently backing up your data, you need to do so immediately.

Recommended Download (WinThruster): Optimize Your PC and Fix SYS File Association Errors.

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Download ksapi_ev.sys Files (Malware-Tested 100% Clean)


CAUTION : We strongly advise against downloading and copying ksapi_ev.sys to your appropriate Windows system directory. Cheetah Mobile typically does not release Clean Master for PC SYS files for download because they are bundled together inside of a software installer. The installer's task is to ensure that all correct verifications have been made before installing and placing ksapi_ev.sys and all other SYS files for Clean Master for PC. An incorrectly installed SYS file may create system instability and could cause your program or operating system to stop functioning altogether. Proceed with caution.

Windows 10
Recommended Download (WinThruster): Optimize Your PC and Fix SYS File Association Errors.

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Files Related to ksapi_ev.sys


SYS Files Related to ksapi_ev.sys

File Name Description Software Program (Version) File Size (bytes) File Location
ksapi64.sys Kingsoft KSAPI Module Kingsoft Antivirus Security System (1,0,572,126) 80560 C:\Windows\Logs\NetSetup\
ksapi64_ev.sys Kingsoft KSAPI Module Kingsoft Antivirus Security System (1,0,575,127) 88792 C:\Windows\Logs\NetSetup\
ksapi64.sys Kingsoft KSAPI Module Kingsoft Antivirus Security System (1,0,575,127) 88792 C:\Windows\Logs\NetSetup\
ksapi_ev.sys Kingsoft KSAPI Module Kingsoft Antivirus Security System (1,0,575,127) 131800 C:\Windows\Logs\NetSetup\
ksapi64_del.sys Kingsoft KSAPI Module Kingsoft Antivirus Security System (1,0,572,126) 80560 C:\Windows\Logs\NetSetup\

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