What is 4001 (0xfa1)

The 4001 (0xfa1) error message is the Hexadecimal data format of your error message generated. It's the conventional error message format utilised by Microsoft Windows and other Ms Windows compatible driver and applications manufacturers.This particular code can be used from the supplier to identify the error made. This unique Relay Acces Denied Windows error code features a numeric value plus a practical description. Occasionally the error code may have more variables in Relay Acces Denied Windows formatting .This further number and letter code are the positioning of the storage regions wherein the instructions are stored during the error code.

Cause of 4001 (0xfa1)

The normal reason for 4001 (0xfa1) is outdated or corrupt driver software. The recording driver may be incompatible with all the motherboard. Issues with the BIOS from the computer could also cause this 4001 (0xfa1) to take place.
4001 (0xfa1) Codes are caused in one way or another by misconfigured system files in your windows operating system.

Receive 4001 (0xfa1) and Windows 10 won't update
With plenty system update issues and errors which may have ever happened and are occurring to ordinary Windows users, it is still a mainstream to update Windows into the latest version - Windows 10. Countless problems pop up now and this seems that it will never end, however. Windows 10 won't update with error codes. That is one of the highly asked question about Windows 10. This concern has puzzled some Windows users for quite a long time will be solved here.

backup Windows 10 and important data before Windows 10 update.
To prevent or avoid unexpected issues like Windows 10 fails to install or update trouble with further data loss problems, it's strongly recommended for those individuals who want to update Windows system to backup important personal data, business files, useful tools and even present Windows system firstly. This can be highly important to prevent any unexpected problems.

Here you may try SmartPCFixer Todo Backup Able to effortlessly backup data and system with ease.

Steps to ....

Troubleshoot 4001 (0xfa1) Error Manually.
Fix 4001 (0xfa1) by updating Windows for the latest version. Click Start button, and kind windows update within the searching box. Then click windows update since the picture below.

Please make sure that if there is any updates need to be updated urgently. If windows shows there are important updates available. Please update it over time. Windows update is a vital procedure to correct 4001 (0xfa1) problem.

Advanced Remedy (Manually):
1) Start your computer and after that sign on for an administrator.
2) Select the Get going button then selectPrograms and Accessories, System Tools, then select Restore.
3) In the new window, select "Restore my PC with an earlier date " and then click Next.
4) Select the freshest system restore date inside the "select a restoration point" list, and then click Next.
5) Then click "Next" within the verification screen.
6) Restart your laptop or desktop whenever the rescue is finished.

For novice Computer User Solution (totally automated):

1) Download PC Fixer .

2) Install program and click "Scan" button.

3) Select the "Fix Errors" button when scan is done.
4) Restart your computer.


  • Warning&Tips:
    1. Whatever steps for you to do for the computer, you have better run for an administrator.
    2. According to the version of Windows you're using, the above steps may be slightly different, but the basic process is mostly the same.
    3.Avoid 4001 (0xfa1) errors by routinely checking your harddrive for viruses. In addition, make sure your pc has the latest software updates.
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