Home > Windows files > osa9.exe

What does the osa9.exe file do?

The osa9.exe process is also known as Microsoft Office (Version 2000 component) and is a part of Microsoft Office (Version 2000 Premium, 2000 Professional, 2000 SR-1 Premium). This software is produced by Microsoft (www.microsoft.com). An obsolete or defective version of osa9.exe can cause problems for your computer that can range from slowness to error messages such as these:

special offer

Free PC Check

Take advantage of our Free Computer Check to identify problems with osa9.exe

Scan your computer today at no charge with the Windows Repair Tool. This tool helps repair Windows and helps it run faster.
More information about Outbyte and Unistall. Please review Outbyte EULA and Privacy Policy. Outbyte scanner and repair are free. An advanced version must be purchased.

What you should know about osa9.exe Microsoft Office

osa9.exe is not part of Windows, but it is important nonetheless. Osa9.exe is found in a subdirectory of "C:\Program Files". The file size is 65,588 bytes.
This osa9 program is recognizable as a window and also on the taskbar. When Windows starts, this process is automatically started at the same time (Registry: MACHINE\User Shell Folders). To remove the file and its related software from your computer, click Programs in Control Panel The osa9 file is not part of the Windows operating system. For this reason, 6% 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 osa9.exe. 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 osa9?

Initializes some of the common fonts installed by Office 2000 among other things. Can be safly removed, but will effect preformance. (further information...)
The OSA9.exe file initializes the shared code that is used by the Office 2000 programs. The benefit of using the OSA9.exe file to initialize shared code is that the Office 2000 programs start faster. If the Office 2000 programs initialize shared code (instead of OSA9.exe), the time it takes for the program to start increases.
Osa9.exe is part of Microsoft Office 2007, and is automatically started at logon. Sometimes it crashes shortly thereafter. It may cause open windows to lose focus repeatedly shortly after logon (annoying but not dangerous).
osa9.exe takes alot of CPU speed, thus slowing the computer.
Jabez Gitonga (Kenya)
From M$FT site (further information...)
It eats the CPU alive!!!!

Summary: 3 users judge osa9.exe to be an essential file that should not be touched. One user considers it harmless. For this reason, one user has already deleted osa9.exe. source: file.net

How to uninstall Microsoft Office

To remove Microsoft Office 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 Microsoft Office in the list of displayed applications.
  5. Click the program, and then click Uninstall.
Remove software in Windows 10
osa9.exe Microsoft Office fix

How to tell if osa9.exe (Microsoft Office) 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 Microsoft Office. To do this, start "Regedit", then look under "HKEY_LOCAL_MACHINE" > "Software" for Microsoft Office 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 osa9.exe 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.

Users with an interest in osa9.exe have also been interested in: osa9.exe [index]