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Example, to see if KB983590 is installed:

systeminfo | find "KB983590"

But what if I wanted to find out if more then one KB was installed?

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2 Answers 2

up vote 2 down vote accepted

Try this:

systeminfo | findstr "KB"

You can also use /i for case insensitive searching. Run findstr /? for even more options.

If you want to search for just a subset of patches, use spaces in between entries:

systeminfo | findstr "KB958488 KB976902 KB976932"
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Brilliant, thanks. –  MathewC Apr 27 '11 at 16:47

I'd go the route of 'find' instead of 'findstr' (simpler/easier)

systeminfo | find /I "kb"

you'll get your list.

use for /f to organize the data easier such as

for /f "tokens=2* delims= " %F IN ('systeminfo ^| find /I "kb"') DO ECHO %F%G%H

that will get rid of the numbered sequence from the beginning of each line.

if you want only the KB#####, change the tokens value to only 2 without the asterisk, and change the ending ECHO to just ECHO %F

for /f "tokens=2* delims= " %F IN ('systeminfo ^| find /I "kb"') DO ECHO %F%G%H>>"%USERPROFILE%\desktop\systeminfo.txt"

will throw it on your desktop as a .TXT file

of course if you want it ina batch file, make sure your %F has an extra % (%%F)

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