loop.sys - Repair Issues and Download

Sometimes Windows system displays error messages regarding corrupted or missing loop.sys 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 loop.sys file can therefore effect in failed execution of the started process.

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

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

User popularity

3.1 Scanning for malicious software
3.2 System and driver update
3.3 System File Checker tool
3.4 System recovery

4 Download loop.sys

4.1 List of loop.sys file versions

File info

General information
Filename	loop.sys
File extension	SYS
Description	Loopback Network Driver

Software
Program	Microsoft® Windows® Operating System
Author	Microsoft Corporation

Details
MIME type	application/octet-stream
File type	Driver
System	Windows NT 32-bit
Copyrights	© Microsoft Corporation. All rights reserved.
Character set	Unicode
Language cod	English (U.S.)

Most common loop.sys file related problems

There are various types of errors related to loop.sys file. loop.sys 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 loop.sys file. If you encounter one listed below (or similar), please consider the following suggestions.

loop.sys is corrupted
loop.sys cannot be located
Runtime Error - loop.sys
loop.sys file error
loop.sys file cannot be loaded. Module was not found
cannot register loop.sys file:
loop.sys file could not be loaded
loop.sys file doesn't exist

loop.sys

Application could not be started because loop.sys file is missing. Reinstall the application to solve the problem.

Problems related to loop.sys 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 loop.sys 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.

How to fix loop.sys errors in just few steps?

Remember, before taking any action related to system files perform a backup copy of your data!

loop.sys 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

Windows files are commonly attacked by malicious software that prevents them from working properly. First step in addressing problems with loop.sys 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.

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

Go to the Windows "Start" menu
Type "Windows Update" in the search field
Choose the appropriate software program (name may vary depending on your system version)
Check if your system is up to date. If any unapplied updates are listed, install them immediately.
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 loop.sys 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 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 loop.sys file. After an error related to%fileextension% file has been discovered, the program attempts to automatically replace the loop.sys file with properly working version. To use the tool:

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

Step 4: Restoring Windows system

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

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

If all the above-mentioned methods failed and the loop.sys 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 loop.sys file

The last solution is to manually download and replace loop.sys 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 loop.sys file.

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

Windows 10: C:\Windows\System32\DriverStore\FileRepository\netloop.inf_x86_ff4a06185491a88a\
Windows 8.1: C:\Windows\System32\DriverStore\FileRepository\netloop.inf_x86_336f686a84333886\
Windows 8: 1: C:\Windows\System32\DriverStore\FileRepository\netloop.inf_x86_336f686a84333886\
Windows 7: ---
Windows Vista: ---
Windows Vista: ---

If the steps did not solve your loop.sys 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 loop.sys

System Windows 10

File size 12288 bytes

Date 2017-03-18

Download

File details
	MD5	972a63c06226f67280c438df4bfae42a
	SHA1	28cc7bcdf61fc441f55f8025f3c4f0142d2fdb7b
	SHA256	bcbd939db5cdcf84bfffb20ca103ae7aecb7687beae1474dd9f487e95c811d3d
	CRC32	b8f34d66
	Example file location	C:\Windows\System32\DriverStore\FileRepository\netloop.inf_x86_ff4a06185491a88a\

Filename loop.sys

System Windows 8.1

File size 11776 bytes

Date 2013-08-22

Download

File details
	MD5	ded3f4132b82d720db1744ef0a0f6ed8
	SHA1	b33441ca0c4b5602c952770161bba9ffd046e54c
	SHA256	777dff704a5aed1a7b5d3258ad05da304aa2a817d9aaf1af68d287d658c31b60
	CRC32	609ac85c
	Example file location	C:\Windows\System32\DriverStore\FileRepository\netloop.inf_x86_336f686a84333886\

Filename loop.sys

System Windows 8

File size 11776 bytes

Date 2012-07-26

Download

File details
	MD5	a13cf4658697359554e6a00369b174d2
	SHA1	64b7c813f8f0f1b9162b97ea2b4021da8084dfd2
	SHA256	a2bc716b90c8b8ab3b4132cc72f6013eb974ccd8782e4c42e7736757e8aab098
	CRC32	793b068b
	Example file location	1: C:\Windows\System32\DriverStore\FileRepository\netloop.inf_x86_336f686a84333886\

Filename loop.sys

System Windows 7

File size 7680 bytes

Date 2009-07-14

Download

File details
	MD5	103b3bbe23ab774b009d182276ec6786
	SHA1	346a3b494a31c2fbd12a4a34627e4e15f7c310ff
	SHA256	823af63d5d47b56455078dd20df000d11a0bd2e094e9002e5b9e8245d7aeae68
	CRC32	4c7a7f04
	Example file location	---

Filename loop.sys

System Windows Vista

File size 9216 bytes

Date 2006-11-02

Download

File details
	MD5	01315b9be387e1ec4754b6004c2c8a49
	SHA1	2e6b4067173b4243ea1e6e4bc6e0a5111dc7558b
	SHA256	67698d2e10a250e3dfc7e9017dd0b5f3cf201b2f27c20c9055e53109b43bcc1c
	CRC32	87a5ecfb
	Example file location	---

Filename loop.sys

System Windows Vista

File size 9216 bytes

Date -0001-11-30

Download

File details
	MD5	612c71f212c632046c2ac8d558496fee
	SHA1	a42ca0a9fc57a6b58770c9b1f50734587aae874a
	SHA256	66d565f810d957c377b9731cb8eef0f4346f68ea79d1137ec22bc671d9810e49
	CRC32	f2e2ac81
	Example file location	---