[newbe]

Hi, for the past few months my computer has been acting really strange. Whenever I download a new program or instalL a new program, after I've installed it, the entire thing freezes and won't open the programs. What possibly could be the problem???...

Hi, for the past few months my computer has been acting really strange. Whenever I download a new program or instalL a new program, after I've installed it, the entire thing freezes and won't open the programs. What possibly could be the problem??? I'm frustrated!! Please help
Also, I have checked and yes I do have all of the system requirements for the programs so that and disk space aren't what's wrong

OS Name Microsoft Windows XP Home Edition
Version 5.1.2600 Service Pack 2 Build 2600
OS Manufacturer Microsoft Corporation
System Manufacturer MSI
System Model MS-7309
System Type X86-based PC
Processor x86 Family 15 Model 127 Stepping 1 AuthenticAMD ~2210 Mhz
BIOS Version/Date MS-7309 V1.A, 12/7/2007
SMBIOS Version 2.5
Boot Device \Device\HarddiskVolume1
Locale United States
Hardware Abstraction Layer Version = "5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)"
Total Physical Memory 2,048.00 MB
Available Physical Memory 1.41 GB
Total Virtual Memory 2.00 GB
Available Virtual Memory 1.96 GB
Page File Space 3.19 GB

Name Realtek High Definition Audio
Manufacturer Realtek
Status OK
PNP Device ID HDAUDIO\FUNC_01&VEN_10EC&DEV_0888&SUBSYS...
Driver c:\windows\system32\drivers\rtkhdaud.sys (5.10.0.5559 built by: WinDDK, 4.51 MB (4,725,760 bytes), 7/3/2008 1:38 AM)


I use ccleaner.... and PCTOOLS Firewall Plus, and ThreatFire and thats about it.. that's all the info I know how to get.
some of the programs that I have tried to install include the trial version of Adobe Lightroom 2, Jalbum, and google Google Earth...........we can install and run programs that we have gotten from disks but if we try to download a program online after it installs it wont run. That's the problem. After the installations, when we try to open the program , the entire computer freezes and we have to reboot.. the programs never actually fully open.

I just did a windows update, got everything updated....
also did a malware scan from trendmicro.com which it found a trojan on and then removed it from my computer...
ran a scan disk.... it fixed a couple of errors....
now everything should be perfect..... but it's not. I uninstalled and reinstalled one of the programs that I was trying to get working, and it still freezes up when I try to open it. So..... I'm completely stumped. Does ANYONE have any other suggestions for me? Please help