What if Win7 performance information and tools are not available?

Through the performance information of the Win7 system and the advanced tools in the tool, we can fully understand the health of the system. However, there are some users of Win7 system feedback, the performance information and tools in the Win7 operating system can not be opened, the prompt "Do not calculate the Windows experience index of your system. & rdquo; What is this all about? Generally, because the driver is not installed or the system is set up, let's check the driver first.

Check the driver is installed:

Open & ldquo; Computer & rdquo; right-click and select & ldquo; & rdquo ;, property Click & ldquo; Device Manager & rdquo; whether to view drive Normal, if there is a "question mark", "exclamation mark", it means that the driver is not installed, we can first install the driver from the relative brand's official website, see the downlink is not good, if not, please see the following solutions.

Solution:

1. Right click on the computer and select “Attributes”, click ““Advanced System Settings”;

2 in the system properties screen, click & ldquo; Superior & rdquo; option card, then click on the & ldquo; the environment variable & rdquo ;;

3, in the system variables window of & ldquo; system variable (S) & rdquo; find the following Variables “TEMP” and “TMP”, see if the values ​​of both variables are “%SystemRoot%\\TEMP”, if not modify it to “%SystemRoot%\\TEMP”, can not find these two For variables, click New under “System Variables (S)” to create these two variables, set the value to “%SystemRoot%\\TEMP”, then click OK and click OK.

These are the solutions Win7 Performance Information and Tools can not be used after set up, we can easily see the performance of the computer hardware and software.