Download UsrClass.dat.LOG1 and Troubleshoot Errors

Last Updated: 12/01/2023
[Average Article Time to Read: 4.7 minutes]

LOG1 files such as UsrClass.dat.LOG1 are categorized as Data (Windows Registry Hive Log) files. As a Windows Registry Hive Log file, it was created for use in Office 2010 by Microsoft.

The first version of UsrClass.dat.LOG1 was released for the Windows Vista Operating System on 11/08/2006 inside Windows Vista. The latest file version for Office 2010 is v2010 released on 06/15/2010. UsrClass.dat.LOG1 is included with Office 2010, Office 2016, and Office 2013.

Please see below for more detailed information, LOG1 file troubleshooting instructions, and free downloads of different versions of UsrClass.dat.LOG1.

File Analysis Provided by Jason Geater (Author)


Recommended Download: Fix UsrClass.dat.LOG1 / Office-related registry issues with WinThruster.

Compatible with Windows 11, 10, 8, 7, Vista, XP and 2000

Average User Rating

 

Optional Offer for WinThruster by Solvusoft
| EULA | Privacy Policy | Terms | Uninstall


File Overview


General Information
File Name: UsrClass.dat.LOG1
File Extension: LOG1 file extension
File Type: Data
Description: Windows Registry Hive Log
User Popularity Rating:
 
Developer and Software Information
Software Program: Office 2010
Developer: Microsoft
Software: Office
Software Version: 2010
File Details
File Size (Bytes): 66560
Oldest File Date: 04/24/2017
Latest File Date: 05/10/2017


What are UsrClass.dat.LOG1 Error Messages?


General UsrClass.dat.LOG1 Runtime Errors

UsrClass.dat.LOG1 file errors often occur during the startup phase of Office, but can also occur while the program is running. These types LOG1 errors are also known as “runtime errors” because they occur while Office is running. Here are some of the most common UsrClass.dat.LOG1 runtime errors:

Microsoft Visual C++ Runtime Library

Runtime Error!

Program: C:\Users\Bill\AppData\Local\Microsoft\Windows\UsrClass.dat.LOG1

This application has requested the Runtime to terminate it in an unusual way.
Please contact the application's support team for more information.


Most LOG1 errors are due to missing or corrupt files. Your UsrClass.dat.LOG1 file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with Office), or deleted by a malware infection. Furthermore, UsrClass.dat.LOG1 file corruption could be caused from a power outage when loading Office, system crash while loading or saving UsrClass.dat.LOG1, bad sectors on your storage media (usually your primary hard drive), or malware infection. Thus, it’s critical to make sure your anti-virus is kept up-to-date and scanning regularly.



How to Fix UsrClass.dat.LOG1 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 UsrClass.dat.LOG1 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 UsrClass.dat.LOG1 error, please proceed to the Step 2 below.

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

You can uninstall Office 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 Office 2010 and click "Uninstall"
  5. Follow the prompts for uninstallation.

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

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

Office 2010

Microsoft Corporation

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 UsrClass.dat.LOG1 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 UsrClass.dat.LOG1 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 UsrClass.dat.LOG1 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 UsrClass.dat.LOG1 file version. We maintain a comprehensive database of 100% malware-free UsrClass.dat.LOG1 files for every applicable version of Office. 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 UsrClass.dat.LOG1 Files".
  2. Click the appropriate "Download Now" button and download your Windows file version.
  3. Copy this file to the appropriate Office folder location:
    Windows Vista: C:\Users\Bill\AppData\Local\Microsoft\Windows\
    Windows Vista: C:\Users\Bill\AppData\Local\Microsoft\Windows\
    Windows 7: C:\Users\Bill\AppData\Local\Microsoft\Windows\
    Windows 7: C:\Users\Bill\AppData\Local\Microsoft\Windows\
    Windows 8: C:\Users\Bill Gates\AppData\Local\Microsoft\Windows\
    Show 5 more directories +
    Windows 8: C:\Users\Bill Gates\AppData\Local\Microsoft\Windows\
    Windows 8.1: C:\Users\Bill Gates\AppData\Local\Microsoft\Windows\
    Windows 10: C:\Users\Bill Gates\AppData\Local\Microsoft\Windows\
    Windows 10: C:\Users\Bill\AppData\Local\Microsoft\Windows\
    Windows 10: C:\Users\defaultuser0\AppData\Local\Microsoft\Windows\
  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 7.


GEEK TIP : We must emphasize that reinstalling Windows will be a very time-consuming and advanced task to resolve UsrClass.dat.LOG1 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 UsrClass.dat.LOG1 Files (Malware-Tested 100% Clean)


CAUTION : We strongly advise against downloading and copying UsrClass.dat.LOG1 to your appropriate Windows system directory. Microsoft typically does not release Office LOG1 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 UsrClass.dat.LOG1 and all other LOG1 files for Office. An incorrectly installed LOG1 file may create system instability and could cause your program or operating system to stop functioning altogether. Proceed with caution.

Windows 10
Windows 8
Windows 7
Windows Vista
Windows 8.1


Files Related to UsrClass.dat.LOG1


LOG1 Files Related to UsrClass.dat.LOG1

File Name Description Software Program (Version) File Size (bytes) File Location
SYSTEM.LOG1 Windows Registry Hive Log Office 2016 6987776 C:\Windows\inf\.NET Data Provider for SqlServer\
COMPONENTS.LOG1 Windows Registry Hive Log Office 2007 262144 C:\Windows\inf\.NET Data Provider for SqlServer\
DRIVERS.LOG1 Windows Registry Hive Log Office 2013 81920 C:\Windows\System32\
SAM.LOG1 Windows Registry Hive Log Office 2010 25600 C:\Program Files (x86)\EaseUS\Disk Copy\BUILDPE...
Amcache.hve.LOG1 Windows Registry Hive Log Office 2013 1069056 C:\Windows\Temp\527D94AF-D053-4381-B105-0D815D5...

Other Files Related to UsrClass.dat.LOG1

File Name Description Software Program (Version) File Size (bytes) File Location
WWAN_profile_v1.xsd XML Schema Definition Windows 7 6201 C:\Windows\L2Schemas\
WWAN_profile_v1.xsd XML Schema Definition Windows 8.1 6201 C:\Windows\L2Schemas\
WWAN_profile_v1.xsd XML Schema Definition Microsoft Office Access 2010 14 6201 C:\Windows\Temp\527D94AF-D053-4381-B105-0D815D5...
WLAN_profile_v1.xsd XML Schema Definition Windows Vista 15591 C:\Windows\L2Schemas\
WLAN_policy_v1.xsd XML Schema Definition Windows 10 7627 C:\Windows\L2Schemas\


RocketPC

Optional Offer for WinThruster by Solvusoft | EULA | Privacy Policy | Terms | Uninstall


Browse Other File Extensions in Alphabetical Order :   # A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

You are downloading trial software. The purchase of a one-year software subscription at the price of $29.97 USD is required to unlock all software features. Subscription auto-renews at the end of the term (Learn more). By clicking the "Start Download" button above and installing "Software", I acknowledge I have read and agree to the Solvusoft End User License Agreement and Privacy Policy.