If you are like myself, and sometimes want to know how long a particular computer has been running it’s operating system since the last installation, what Microsoft hot fixes have been applied, or other general system information, the Windows “systeminfo” command may be a good tool to use.
Since I work on quite a few computers that often need to be cleaned up or have problems with excessive malware or rootkits installed, which are nearly impossible to remove, the systeminfo command is frequently used in my business. Many times it is also a good indication that someone else has previously worked on the computer besides me and did not do things properly. For example, if the computer is a three year old system, and Windows was just installed about one month ago, it is pretty safe to assume it was brought to someone else about a month ago.
I also tend to check out the information for my own personal computers as well. I typically redo my entire system at least once a year, sometimes more often if I noticed things start to slow down. Sometimes spending hours cleaning up a system is just not worth it when I can freshly redo the computer in less time, and it will almost always perform best this way.
Systeminfo is very simple, and easy to use. Simply open up a command prompt and type in “systeminfo” without the quotes of course. If you do not know how to open up a command prompt, there are a few ways to do it. One of the easiest ways being the “Windows Key” + “X Key”. That will bring up a menu containing two version of Command Prompt, one being a regular user level, and one granting administrative privileges. For the systeminfo utility either one will work as administrative privileges are not needed.

Command Prompt
One you have the command prompt open and have entered in systeminfo, the system will gather information for a second or two and then display it on the screen for you to see. Some basic information such as Windows name and version numbers, build numbers, system manufacturers, product ID, BIOS information, hot fixes installed, networking adapters, system memory usage, last boot up time, as well as the date and time of the last Windows installation. In the case of my main system, I last installed Windows 8 March 26, 2013 at 7:13PM. System manufacturer information is showing a “default” as it is a custom built machine, rather then an HP, Toshiba, Dell or the likes.

Systeminfo

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