Fix GUBootStartup.sys Blue Screen Errors (Free Download)

Last Updated: 07/03/2021
[Average Read Time: 4.5 minutes]

SYS files such as GUBootStartup.sys are categorized as Win64 EXE (Driver) files. As a The driver for the Startup Manager tool file, it was created for use in Glary Utilities by Glarysoft Ltd..

The first version of GUBootStartup.sys was released for the Windows 10 Operating System on 09/23/2019 inside Glary Utilities 5.128.0.153. This is the most recent release date from Glarysoft Ltd., according to our records.

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

File Analysis Provided by Jason Geater (Author)


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File Overview


General Information
File Name: GUBootStartup.sys
File Extension: SYS file extension
Description: The driver for the Startup Manager tool
Object File Type: Driver
File Operating System: Windows NT
MIME Type: application/octet-stream
User Popularity Rating:
 
Developer and Software Information
Software Developer: Glarysoft Ltd
Software Program: Glary Utilities
Legal Copyright: Copyright (c) 2003-2018 Glarysoft Ltd
File Details
Character Set: Unicode
Language Code: Neutral
File Flags: (none)
File Flags Mask: 0x003f
Entry Point: 0x6064
Code Size: 7680


What are GUBootStartup.sys Error Messages?


GUBootStartup.sys Blue Screen of Death (BSOD) Errors

There are a number of reasons why you could be encountering issues with GUBootStartup.sys. Most of the issues concerning SYS files involve Blue Screen of Death (BSOD) errors. These types of GUBootStartup.sys errors can be cause by hardware problems, outdated firmware, corrupt drivers, or other software-related (eg. Glary Utilities 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: GUBootStartup.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] (GUBootStartup.sys).

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

It's Critical to Resolve Blue Screen of Death Errors

In the majority of cases, you will encounter GUBootStartup.sys BSOD errors after you've installed new hardware, software (Glary Utilities), or performed a failed Windows Update. In other cases, software corruption caused by a malware infection can lead to GUBootStartup.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 GUBootStartup.sys Blue Screen of Death error after recent changes.



How to Fix GUBootStartup.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 GUBootStartup.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 GUBootStartup.sys error, please proceed to the Step 2 below.

Step 2: If recently installed Glary Utilities (or related software), uninstall then try reinstalling Glary Utilities software.

You can uninstall Glary Utilities 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 Glary Utilities 5.128.0.153 and click "Uninstall"
  5. Follow the prompts for uninstallation.

After the software has been fully uninstalled, restart your PC and reinstall Glary Utilities software.

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

Glary Utilities 5.128.0.153

Glarysoft Ltd.

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 GUBootStartup.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 GUBootStartup.sys error message, please proceed to next step. Please note that this final step is recommended for advanced PC users only.



If Those Steps Fail: Download and Replace Your GUBootStartup.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 GUBootStartup.sys file version. We maintain a comprehensive database of 100% malware-free GUBootStartup.sys files for every applicable version of Glary Utilities. 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 GUBootStartup.sys Files".
  2. Click the appropriate "Download Now" button and download your Windows file version.
  3. Copy this file to the appropriate Glary Utilities folder location:
    Windows 10: C:\Windows\System32\drivers\
  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 GUBootStartup.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.



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


CAUTION : We strongly advise against downloading and copying GUBootStartup.sys to your appropriate Windows system directory. Glarysoft Ltd. typically does not release Glary Utilities 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 GUBootStartup.sys and all other SYS files for Glary Utilities. 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


Files Related to GUBootStartup.sys


SYS Files Related to GUBootStartup.sys

File Name Description Software Program (Version) File Size (bytes) File Location
BootDefragDriver.sys Boot Defrag Driver Glary Utilities (4.0.0.38) 24336 C:\Program Files (x86)\Glary Utilities 5\Native...
BootDefragDriver.sys Boot Defrag Driver Glary Utilities (4.0.0.38) 24336 C:\Program Files (x86)\Glary Utilities 5\Native...
BootDefragDriver.sys Boot Defrag Driver Glary Utilities (4.0.0.38) 25864 C:\Program Files (x86)\Glary Utilities 5\Native...
BootDefragDriver.sys Boot Defrag Driver Glary Utilities (4.0.0.38) 25864 C:\Program Files (x86)\Glary Utilities 5\Native...
BootDefragDriver.sys Boot Defrag Driver Glary Utilities (4.0.0.38) 24336 C:\Program Files (x86)\Glary Utilities 5\Native...

Other Files Related to GUBootStartup.sys

File Name Description Software Program (Version) File Size (bytes) File Location
Sessions.xml Extensible Markup Language Glary Utilities 5.128.0.153 5303711 C:\Windows\servicing\Sessions\
SA.DAT Game Data Malware Hunter 1.94.0.683 6 C:\WINDOWS\Tasks\
WmiApRpl.ini Windows Initialization Glary Utilities 5.128.0.153 29736 C:\Windows\inf\WmiApRpl\0009\
dpx.dll Microsoft(R) Delta Package Expander Microsoft® Windows® Operating System (5.00) 628024 C:\Windows\SoftwareDistribution\Download\43a200...
api-ms-win-core-heap-l... ApiSet Stub DLL Microsoft® Windows® Operating System (10.0.17134.12) 11112 C:\Users\Tester\AppData\Local\Microsoft\OneDriv...


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