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What is Error 651 Windows 7?

The error 651 is well known Windows 7 or Vista error that occurs when you try to connect with internet. This error occurs because of corruption of raspppoe.sys system file which is stored in driver folder or its path stored in registry database. If you want to fix Error 651 Windows 7 then you need to correct or update related driver or clean and reset registry for bad errors.


  • The most common reason behind this error is installing incompatible or outdated driver, missing system files, corrupted registry file or damaged pc by viruses. Advanced System Repair Tool is the only solution for all the system errors. By installing this tool you will be able to remove above windows error.
    3 Steps to Fix this Error

    Step 1. Download Advance System Repair Tool [File Size: 15.7 MB]
    Step 2. SCAN your Windows PC
    Step 3. Click Fix button to Repair Error


There are several reasons behind this error that is mentioned below:

1. The main reason for this error is raspppoe.sys file which resides in driver folder. It is a system file which is corrupted or damaged now. When windows try to access this file, it is unavailable or windows can’t find this file and show error 651. This file may be corrupted due to the virus or Trojan attack, installing other incompatible software or driver or due to malware.

2. The registry keeps the path of this sys file. When OS needs raspppoe.sys file, it finds a path in the registry database. If due to any reason OS fails to find a path in the registry, it never accesses the sys file and throws an error. It is the most prominent reason behind this error. The registry file is very flexible which may be damaged due to simple virus or malware attacks.

How to Windows 7 Error 651 Fix

There are some best ways to fix this error that is mentioned below.

1. Copy and replace raspppoe.sys file. Go to the following location to copy fresh sys file in other system and paste it into your system.


2. Re-register your sys file. Type following command in run window and press enter.

regsvr32 raspppoe.sys

It will register this file again and fix error 651 windows 7 easily.

3. Rename the sys file as raspppoe.old and restart your pc.

Professional Solution

If you have no idea about how to perform above steps or you are unable to fix error 651 windows7 using given steps then you can take help of professional solution. Advanced System Repair Tool is the all in one solution for this error. This tool scans entire pc for errors including driver, registry, startup and malware and shows you list of errors. Then just click Fix All button to fix entire PC errors including windows 7 error 651.

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How to fix Error 651 in Windows 7 and Vista?

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