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Process Detail

Running, Malicious, Unwanted, Memory Hogs

Welcome to the PC Matic Process Library. We maintain an extensive list of common processes running on today’s PCs. Within this library you can learn more about the processes running on your machine.

Process Library Detail

What is fast.exe? Fast User Switching?

Vendor:      Microsoft
Product:     Windows
Vendor Website:      http://www.microsoft.com/windowsxp/pro/downloads/powertoys.asp
Last Seen by PC Matic:      No Data

Process is Bad PC Matic has analyzed this process and determined that there is a high likelihood that it is bad.
Process is questionablePC Matic has analyzed this process and determined that the safety of this process is questionable.
Process is goodPC Matic has analyzed this process and determined that there is a high likelihood that it is good.
Process is goodThis process is a Microsoft or Windows process, but many viruses use this file name to escape notice.

Purpose: Fast.exe - Fast User Switching PowerToy. Allows you to cycle through all users logged into a computer using the WindowsKey-Q combination. If you do not stay logged in as multiple users simultaneously--few people do--you can remove this progam and improve performance a bit. For more information see the Microsoft XP PowerToys web page.

fast.exe uses excessive system and memory resources with no corresponding benefit. Applications such as these should be disabled to improve overall system performance.


fast.exe is known to be a bad process. Learn more about protecting your PC from these bad processes with PC Matic.
fast.exe could be a harmful process. Learn more about protecging your PC from these potential harmful processes with PC Matic.
This information brought to you by PC Matic. PC Matic's real-time protection, Super Shield, blocks ALL bad and unknown threats to keep your PC secure.
fast.exe is a Microsoft or Windows process but some versions of this exe carry viruses.
Learn more about protecting yourself from bad versions of this file with PC Matic.

Percentage of recently scanned PC's with this process running: 0.06%
Average CPU use for this program: 0%
Average RAM for this program: 1 MB


Program Name MD5 Count
fast.exe

MD5 Hashes

# Status MD5 Revision Name Size
1 Status 0xa2314a81055b6fdfc775fa4adf0b5fa0 1/31/2015 4:09:00 PM Unknown 5.1.3570.0 (Lab06_DEV(lamadio).011003-1729) Fast User Switching 48 KB
2 Status 0x1be84e434200cbcc51da6b3aae5f2330 1/27/2015 12:43:00 AM Unknown 5.1.3564.0 (Lab06_DEV(lamadio).011003-1729) Fast User Switching 48 KB
3 Status 0x50b68b621546c5ab90b5f2ca6128b211 4/4/2010 7:18:00 PM Unknown Unknown Fast User Switching 48 KB
4 Status 0xfa1b0e33587428ef3535763f5691d740 12/20/2009 7:57:00 AM Unknown Unknown Fast User Switching 40 KB
5 Status 0x3b724d5a70a1e938424de1e590c7d77e 8/29/2009 3:12:00 PM Unknown 5.1.3570.0 (Lab06_DEV(lamadio).011003-1729) Fast User Switching 48 KB
6 Status 0x4bd41abb9f83baaec9e0803bf5cfcaed 3/15/2009 5:51:00 PM Unknown Unknown Fast User Switching 40 KB
7 Status 0xf0ed417a038eebfb5d164fa95bcca595 12/29/2008 8:08:00 PM Unknown Unknown Fast User Switching 48 KB
8 Status 0x24d49e90b50443119e6892b21713b6df 9/6/2008 1:40:00 PM Unknown 5.1.3545.0 (Lab06_DEV(lamadio).010813-2002) Fast User Switching 47 KB
9 Status 0x674451427eebc5c595f81aa4bda8dbb1 4/19/2008 2:26:00 AM Unknown Fast User Switching 68 KB
10 Status 0xce3be2589dd6a9851dca3b47b112963f 12/31/2007 Unknown 5.1.3570.0 (Lab06_DEV(lamadio).011003-1729) Fast User Switching 368 KB
11 Status 0xdd22eb0b321b13057080fc10ec6cfd2d 12/31/2007 Unknown Fast User Switching 394 KB
12 Status 0x97a6548b8a9b5030bb7c216116f6dce6 12/31/2007 Unknown Fast User Switching 67 KB


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