Although it can be correctly identified, some memory may have some bad memory contact. If it is a D version system, there may be a problem with activation. The suggestions given here are:
Solution 1 : Replug the memory
Turn off the power, turn off the chassis, unplug the memory module, use the rubber to wipe the gold finger clean, if possible (preferably) clean the memory slot to ensure that the memory slot is not Dust, restart the computer, try it out when trying to upgrade.
Solution 2: Change the activation method
If you use the KMS activation system, it is recommended to use KMS. It is recommended to try the Pony win7 activation tool.
Solution 3: Upgrade using ISO image
Download the non-Ghost version of the ISO format image file. After decompressing, double-click the Setuo.exe upgrade to try it out. During the installation process, skip the input installation key. If you can't activate it, try KMS activation.
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