Problem with application memory in windows 7 32 bit?

Update: I used firefox with many opened tabs. Firefox used 1.7 GB and more of RAM and worked well. But unfortunately after one windows update, firefox started to crash using memory above 800 - 900 MB of RAM. Later it turned out that this is much more serious problem because some serious programs (cad system ANSYS) intended... show more I used firefox with many opened tabs. Firefox used 1.7 GB and more of RAM and worked well. But unfortunately after one windows update, firefox started to crash using memory above 800 - 900 MB of RAM. Later it turned out that this is much more serious problem because some serious programs (cad system ANSYS) intended to use 2 GB RAM and above, now crash at 1.2 GB RAM or about. Is there way to return to previous behavior of windows 7 32 bit where applications could use 2 GB of ram with no problems?
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