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How to eliminate rasacd driver problems

The rasacd.sys (RAS Automatic Connection driver) file is a Windows driver. Generally, drivers are used by Windows to enable internal components like graphic cards and drives, or external devices, such as printers, backup media or input devices.
Click here to check if you need to update your rasacd driver.

The rasacd.sys process is also known as RAS Automatic Connection Driver and is a part of Remote Access Auto Connection Driver. This software is produced by Microsoft (www.microsoft.com). An obsolete or defective version of rasacd.sys can cause problems for your computer that can range from slowness to error messages such as these:

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What you should know about rasacd.sys RAS Automatic Connection driver

The original rasacd.sys file is definitely a Windows system file, but many viruses use the same name in order to remain unnoticed. Rasacd.sys is found in the C:\Windows\System32\drivers directory. Frequently occurring are file sizes such as 8,832 bytes (93% of all these files) or, as the case may be, 11,776 bytes.
If necessary, you can manually stop or start this driver in the Device Manager. The Device Manager can be found in Windows Control Panel under Hardware and Sound/Devices and Printers/Device Manager. The driver facilitates access to your computer's hardware and accessories. The file is a Windows system file. This rasacd.sys process does not appear as a visible window, but only in Task Manager. To verify its trustworthiness, Microsoft has provided it with an embedded certificate. The service has no characteristics or description of its own. This is unusual. rasacd.sys appears to be a file that was compressed by an EXE-Packer. This technique is often used by trojans to keep the file size small and also hamper debugging efforts. However, this in itself is not sufficient reason to presume malicious intent, since even well-intentioned, professional software producers take advantage of compressed files. For this reason, 3% of all experts consider this file to be a possible threat. The probability that it can cause harm is high.

If you see this file on your hard drive or in Windows Task Manager, please make sure that it is not a malicious variant. It's a fact that many trojans try to cloak their true identity by calling themselves rasacd.sys. With the above information or by using tools like Security Task Manager you can determine if, in your case, the file is an undesirable variant.

What do other computer users say about rasacd?

Not a thing, that is why I came in here looking...
Jeffrey S. Bohemier
Variant of Alureon/TDSS rootkit, hard to detect with multiple protection software, HitmanPro (1-month free trial) detected and removed it. (further information...)
Kieran Mitchell
rasacd.sys is part of Windows and is Microsoft Windows RAS automatic connection driver that should be located in the C:\Windows\System32\drivers.

Summary: One user judges rasacd.sys to be an essential file that should not be touched. For this reason, one user has already deleted rasacd.sys. source: file.net

How to uninstall Remote Access Auto Connection Driver

To remove RAS Automatic Connection driver from your computer, please follow the manual instructions below or use an automatic uninstaller product.

  1. Click the Windows Start Button. You find it in the lower left corner of the taskbar.
  2. Type the word uninstall.
  3. Click Add or remove programs.
  4. Now locate Remote Access Auto Connection Driver in the list of displayed applications.
  5. Click the program, and then click Uninstall.
Remove software in Windows 10
rasacd.sys RAS Automatic Connection driver fix

How to tell if rasacd.sys (RAS Automatic Connection driver) was uninstalled cleanly

After uninstalling, restart your computer. Then start Windows Explorer and see if there is still a folder with the name of the software under C:\Program Files. Be sure to check the Registry as well for remnants of RAS Automatic Connection driver. To do this, start "Regedit", then look under "HKEY_LOCAL_MACHINE" > "Software" for RAS Automatic Connection driver or the name of the producer. Always keep in mind that only a computer professional should ever directly delete entries in the Windows Registry.

What to do if a program does not uninstall

The easiest way to remove any kind of software cleanly and accurately is to use an uninstaller tool. Because the uninstaller automatically creates a backup, there is no risk of anything going wrong.

Last but not least

If Windows not working quite right for you, or if startup is taking a long time, or rasacd.sys is causing problems for you, a good Windows diagnostic tool may very well help. This is especially effective when it comes to older computers that have accumulated vast quantities of "garbage data" as the result of many software installs and uninstalls.

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