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Download UsrClass.dat.LOG1 to Fix Errors

Sometimes Windows system displays error messages regarding corrupted or missing UsrClass.dat.LOG1 files. Situations like that can occur, for example, during a software installation process. Each software program requires certain resources, libraries, and source data to work properly. Corrupted or nonexistent UsrClass.dat.LOG1 file can therefore effect in failed execution of the started process.

UsrClass.dat.LOG1 file Windows Registry Hive Log. The file was developed by Microsoft for use with Office software. Here you will find detailed information about the file and instructions how to proceed in the event of UsrClass.dat.LOG1 related errors on your device. You can also download UsrClass.dat.LOG1 file compatible with Windows 10, Windows 10, Windows 8.1, Windows 8, Windows 7, Windows 7, Windows Vista, Windows Vista, Windows 8 devices which will (most probably) allow you to solve the problem.

For Windows Compatible with: Windows 10, Windows 10, Windows 8.1, Windows 8, Windows 7, Windows 7, Windows Vista, Windows Vista, Windows 8

File info

General information
Filename UsrClass.dat.LOG1
File extension LOG1
Type Data
Description Windows Registry Hive Log
Software
Program Office 2010
Software Office
Author Microsoft
Software version 2010
Details
File size 66560
Oldest file 2017-04-24
Latest file 2017-05-10
UsrClass.dat.LOG1

There are various types of errors related to UsrClass.dat.LOG1 file. UsrClass.dat.LOG1 file may be located in wrong file directory on your device, may not be present in the system, or may be infected with malicious software and therefore not work correctly. Below is a list of most common error messages related to UsrClass.dat.LOG1 file. If you encounter one listed below (or similar), please consider the following suggestions.

  • UsrClass.dat.LOG1 is corrupted
  • UsrClass.dat.LOG1 cannot be located
  • Runtime Error - UsrClass.dat.LOG1
  • UsrClass.dat.LOG1 file error
  • UsrClass.dat.LOG1 file cannot be loaded. Module was not found
  • cannot register UsrClass.dat.LOG1 file:
  • UsrClass.dat.LOG1 file could not be loaded
  • UsrClass.dat.LOG1 file doesn't exist

UsrClass.dat.LOG1

Error

Application could not be started because UsrClass.dat.LOG1 file is missing. Reinstall the application to solve the problem.

OK

Problems related to UsrClass.dat.LOG1 can be addressed in various ways. Some methods are meant only for advanced users. If you don't have confidence in your skills, we suggest consulting a specialist. Fixing UsrClass.dat.LOG1 file errors should be approached with utmost caution for any mistakes can result in unstable or unproperly working system. If you have the necassary skills, please proceed.

UsrClass.dat.LOG1 file errors can be caused by various factors, so its is beneficial to try to fix them using various methods.

Step 1: Scan your computer for any malicious software

Virus Scan

Windows files are commonly attacked by malicious software that prevents them from working properly. First step in addressing problems with UsrClass.dat.LOG1 file or any other Windows system files should be scanning the system for malicious software using an antivirus tool.

If by any chance you don't have any antivirus software installed on your system yet, you should do it immediately. Unprotected system is not only a source of file errors, but, more importantly, makes your system vulnerable to many dangers. If you don't know which antivirus tool to choose, consult this Wikipedia article – comparison of antivirus software.

Step 2: Update your system and drivers.

Windows Update

Installing relevant Microsoft Windows patches and updates may solve your problems related to UsrClass.dat.LOG1 file. Use dedicated Windows tool to perform the update.

  1. Go to the Windows "Start" menu
  2. Type "Windows Update" in the search field
  3. Choose the appropriate software program (name may vary depending on your system version)
  4. Check if your system is up to date. If any unapplied updates are listed, install them immediately.
  5. After the update has been done,restart your computer in order to complete the process.

Beside updating the system, it is recommended that you install latest device drivers, as drivers can influence proper working of UsrClass.dat.LOG1 or other system files. In order to do so, go to your computer or device producer's website where you will find information regarding latest driver updates.

Step 3: Use System File Checker (SFC) tool

System File Checker

System File Checker is a Microsoft Windows tool. As the name suggests, the tool is used for identyfing and addressing system file related errors, including those related to UsrClass.dat.LOG1 file. After an error related to%fileextension% file has been discovered, the program attempts to automatically replace the UsrClass.dat.LOG1 file with properly working version. To use the tool:

  1. Go to the Windows "Start" menu
  2. Type "cmd" in the search field
  3. Locate "Command Prompt" result – don't run it yet:
  4. Click the right mouse button and select "Run as Administrator" option
  5. Type "sfc /scannow" in console prompt to start the program and follow the instructions

Step 4: Restoring Windows system

Windows Recovery

Another approach is to restore system to previous state, before the UsrClass.dat.LOG1 file error occured. In order to restore your system, follow the instructions below

  1. Go to the Windows "Start" menu
  2. Type "System Restore" in the search field
  3. Start the system restore tool – it's name may differ depending on version of the system
  4. The application will guide you through the process – read the messages carefully
  5. After the process has finished, restart your computer.

If all the above-mentioned methods failed and the UsrClass.dat.LOG1 file problem has not been resolved, proceed to the next step. Remember that the following steps are intended only for advanced users.

Download and replace UsrClass.dat.LOG1 file

The last solution is to manually download and replace UsrClass.dat.LOG1 file in appropriate folder on the disk. Select file version compatible with your operating system and click the "Download" button. Next, go to your web browser's "Downloaded" folder and copy the downloaded UsrClass.dat.LOG1 file.

Go to the folder where the file should be located and paste the downloaded file. Below is the list of UsrClass.dat.LOG1 file example directory paths.

  • Windows 10: C:\Users\Bill\AppData\Local\Microsoft\Windows\
  • Windows 10: C:\Users\Bill\AppData\Local\Microsoft\Windows\
  • Windows 8.1: ---
  • Windows 8: ---
  • Windows 7: ---
  • Windows 7: ---
  • Windows Vista: ---
  • Windows Vista: ---
  • Windows 8: ---

If the steps did not solve your UsrClass.dat.LOG1 file problem, you should consult a professional. A probability exists that the error(s) might be device-related and therefore should be resolved at the hardware level. A fresh operating system installation might be necessary – a faulty system installation process can result in data loss.

File versions list

Filename UsrClass.dat.LOG1
System Windows 10
File size 1916928 bytes
Date 2017-05-10
File details
MD5 862706955c198e682f7dac7d7f359c7f
SHA1 943c84e5a13010527e74b9a8100f8a794ad34a5a
SHA256 1418332f97ed5103b4143962606670d6e6287c3a70c41a238c7c64686d254f55
CRC32 a24db083
Example file location C:\Users\Bill\AppData\Local\Microsoft\Windows\
Filename UsrClass.dat.LOG1
System Windows 10
File size 0 bytes
Date 2017-04-24
File details
MD5 d41d8cd98f00b204e9800998ecf8427e
SHA1 da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256 e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
CRC32 00000000
Example file location C:\Users\Bill\AppData\Local\Microsoft\Windows\
Filename UsrClass.dat.LOG1
System Windows 8.1
File size 3203072 bytes
Date 2017-04-24
File details
MD5 963f081fcf826c0267688a5a91f7b53e
SHA1 bc701b850efc47ee3405089eae7c8ad2dbe60084
SHA256 29944b9984ff4d20ea7c133d8edc23c9147ce04429ef0f2dced952f9ee62a7e3
CRC32 64bef7da
Example file location ---
Filename UsrClass.dat.LOG1
System Windows 8
File size 1896448 bytes
Date 2017-04-24
File details
MD5 fe46698bc5ac1b90dc95f8e134bc998c
SHA1 dfcfaf6b42c28ee090c826f059be5ca101056d55
SHA256 3acbefa52f5d6e4c93a3cbc294e92cf14df0df12890bce4a9f4a48c11b7356f2
CRC32 1f1f32c0
Example file location ---
Filename UsrClass.dat.LOG1
System Windows 7
File size 66560 bytes
Date 2017-05-10
File details
MD5 2c4a396db7897932ec2e38b189a6f177
SHA1 873707118b1d171ac6874d80c0eca0c50a0a1c6a
SHA256 d2fc5d9b9fa8fed56c58cadf49234c2d184ef02aadd341dd3f94a9228ebfa269
CRC32 b59ae56f
Example file location ---
Filename UsrClass.dat.LOG1
System Windows 7
File size 62464 bytes
Date 2017-04-24
File details
MD5 5ab91ed4bc9ac31ccadd3561fa4b9d2b
SHA1 6a7cf253a1c5fb6c81ded85aefbcc631d5ab57b0
SHA256 c093567e80cffecd1c959c1263c7bfd6a1e60b8b74739b2421db09115265d30f
CRC32 16ff0ca4
Example file location ---
Filename UsrClass.dat.LOG1
System Windows Vista
File size 262144 bytes
Date 2017-05-10
File details
MD5 c6078578a76c28311ceaeaefb823261f
SHA1 bf54e277f19c2122ae2a933f2b4583f524e8ca68
SHA256 c64d0a0e457017504928a549082dab5894e4e8bcc5a085e66525a348b4c791c8
CRC32 7f5c5aa7
Example file location ---
Filename UsrClass.dat.LOG1
System Windows Vista
File size 13312 bytes
Date 2017-04-24
File details
MD5 3b21e774753452da77da85b20e201f6f
SHA1 f34785722f40d5b946e00955bad6a78217294380
SHA256 8a8318bbe7b4f8c8851b9ab9f58e9a8e9940c4aa58873922a6e20c236835a475
CRC32 cba4df3a
Example file location ---
Filename UsrClass.dat.LOG1
System Windows 8
File size 1916928 bytes
Date 2017-05-10
File details
MD5 862706955c198e682f7dac7d7f359c7f
SHA1 943c84e5a13010527e74b9a8100f8a794ad34a5a
SHA256 1418332f97ed5103b4143962606670d6e6287c3a70c41a238c7c64686d254f55
CRC32 a24db083
Example file location ---