Solved: Rising physical memory usage locks up computer

Results of screen317's Security Check version 0.99.64
Windows 7 Service Pack 1 x64 (UAC is enabled)
``````````````Antivirus/Firewall Check:``````````````
Windows Firewall Enabled!
Kaspersky Anti-Virus
Antivirus up to date!
`````````Anti-malware/Other Utilities Check:`````````
Malwarebytes Anti-Malware version 1.75.0.1300
HLP Free PC Cleaner 1.5
Java(TM) 6 Update 20
Java 7 Update 15
Java version out of Date!
Mozilla Firefox 14.0.1 Firefox out of Date!
Google Chrome 26.0.1410.64
Google Chrome 27.0.1453.94
````````Process Check: objlist.exe by Laurent````````
Kaspersky Lab Kaspersky Anti-Virus 2013 avp.exe
`````````````````System Health check`````````````````
Total Fragmentation on Drive C: 0%
````````````````````End of Log``````````````````````
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Java version out of Date!
http://www.java.com/en/
Remove the older version of Java - 6 Update 20

HLP Free PC Cleaner 1.5
Some of these junk files cleaners have been known to remove system files.

Malwarebytes Anti-Malware (Trial) should revert to the Free version, once the trial is over.