You don't know how to use XP, installing Vista will only make things worse. If you always had problems with programs closing and not responding you should call your computer company for service.
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PDF files are Adobe Acrobat Portable Document Format not Microsoft works files! They are viewed with Adobe Reader.
Install Adobe Reader 8 to view PDF files on the internet.
http://www.adobe.com/products/acrobat/readstep2.html
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If you need to read and send Microsoft office files you have two options:
1) Buy Microsoft office:
Download a free, 60-day trial, of Microsoft Office 2007
http://office.microsoft.com/en-us/products/HA101741481033.aspx
2007 Microsoft Office system suites
http://office.microsoft.com/en-us/suites/FX101635841033.aspx
Microsoft Office Home and Student 2007 $137
Complete package - 3 PC in one household - non-commercial - CD - Win - English
http://www.campustech.com/c/campust/title.html?id=mIS8QpvH&mv_arg=MSN161&mv_pc=131
https://usm.channelonline.com/rtech/storesite/Products/index.co?id=M003243839
Microsoft Office Professional Home and Student 2007 $170
Complete package - 3 PC in one household - non-commercial - CD - Win - English
http://www.campustech.com/c/campust/store.html?id=mIS8QpvH&mv_arg=MSFT&mv_pc=25
2) Install open office:
It is compatible with most Microsoft Office Professional applications.
http://www.openoffice.org/
Can import from MS application and export to MS application unless noted:
Base = Access
Calc = Excel
Draw = Similar to Publisher but not directly compatible
Math = Create equations
Impress = PowerPoint
Writer = Word
No equivalent = Office Outlook
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computer is constantly "not responding" and closing out the window on its own
Run "check disk" check both options and restart. (Runs a long time)
Run Disk Cleanup then Disk Defragment.
4 Ways to Speed Up Your Computer's Performance
http://www.microsoft.com/atwork/getstarted/speed.mspx
Run PC Pitstop "Full Tests"
http://www.pcpitstop.com/
It will suggest changes to improve performance if it finds errors. In the running programs section it will list programs that can be disabled to improve computer performance; start msconfig and uncheck these programs.
My guess is you may have a bad system file, bad program files, and malware on your computer. In severe cases you will need to erase everything and reinstall XP, your drivers, and your program files.
Bad System File:
Start> Run> enter "sfc.exe /scannow" in the run box.
Run. You will need the windows XP disk. This utility will check all system files against the disk and repair if needed.
Bad Program File:
Note which program stops responding. Consider uninstalling and reinstalling program.
You may have malware installed on your system. If you follow all the following steps it should get rid of your problem and prevent future problems. All programs listed are free.
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Update your antivirus and run a full scan
If you do not have virus protection install:
AVG Antivirus 7.5 Free Edition
http://free.grisoft.com/freeweb.php/doc/avg-anti-virus-free/lng/us/tpl/v5
or
Free antivirus - avast! 4 Home Edition
http://www.avast.com/eng/avast_4_home.html
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Install Windows Defender (full time spyware protection)
Perform a full scan.
http://www.microsoft.com/athome/security/spyware/software/default.mspx
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Install the following five programs and run weekly or at least monthly. You need all five. They are not a substitute for full time spyware and virus protection.
Install and run now.
Ad-Aware SE Personal (update + full scan)
http://www.lavasoftusa.com/products/ad-aware_se_personal.php
Spybot Search & Destroy (update + immunize + scan)
Do not enable Tea Timer and SDHelper
After installation: update + scan + immunize
http://www.safer-networking.org/en/mirrors/index.html
SpywareBlaster: Update then open and click “enable all protection”.
http://www.javacoolsoftware.com/spywareblaster.html
SUPERAntiSpyware free version: (update + scan)
http://www.superantispyware.com/
CCleaner: Do not install toolbar and recycle bin options
Removes tracking cookies, unneeded files, history
In options.
Set to run when computer starts.
Place cookies you want to keep in save list
http://www.ccleaner.com/
Note if a scan detects a problem but is unable to remove, start the computer in safe mode with the internet line disconnected and run a full scan.
In severe cases your system restore files will also be infected. In these cases you will need to turn off system restore to prevent malware hiding in the system restore files and reinfecting the computer during removal or during a future system restore. Turning off system restore deletes the system restore files.
Right click on "my computer"> Properties > System Restore Tab > Check box turn of system restore
After the malware is removed turn on system restore.
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Run this time
Install VX2 tool for Ad-Aware and run tool
http://www.lavasoftusa.com/support/securitycenter/vx2_cleaner.php
CWShredder: run
http://www.trendmicro.com/cwshredder/
SmitFraudFix
http://www.geekstogo.com/forum/How_to_use_SmitFraudFix-t109268.html
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Additional run this time and as needed.
Microsoft OneCare Live, run “full service scan”
Updates windows, virus and spyware scan, disk cleanup, disk fragmentation (if needed), backs up registry and then cleans registry, and checks for open firewall ports
http://onecare.live.com/site/en-us/default.htm
Malicious Software Removal Tool (run “full scan”)
http://www.microsoft.com/security/malwareremove/default.mspx
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Rootkit Removal Guide
http://safecomputing.umn.edu/guides/scan_unhackme.html
Rootkits Removers (Pick any 2 install and run monthly)
AVG Anti-Rootkit
http://www.grisoft.com/doc/products-avg-anti-rootkit-update-app-art/?ver=1.1.0.29
F-Secure BlackLight
http://www.f-secure.com/blacklight/
Sophos Anti-Rootkit
http://www.sophos.com/products/free-tools/sophos-anti-rootkit.html
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Online Free Scanners:
Run Trend Micro, Kaspersky, and Panda Scan now.
Run a different one each month.
Trend Micro: HouseCall Free Scan (removes what it finds)
http://housecall.trendmicro.com/
BitDefender Online Scanner http://www.bitdefender.com/scan8/ie.html
Kaspersky Labs Online Scanner http://www.kaspersky.com/virusscanner
McAfee http://us.mcafee.com/root/mfs/default.asp?affid=294
Panda ActiveScan Free Online Scanner http://www.pandasoftware.com/products/activescan?
Symantic Online Scanner http://security.symantec.com/sscv6/ssc_eula.asp?langid=ie&venid=sym&plfid=23&pkj=ALUFRHYTINMHDKDCWLL&vc_scanstate=2
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Additional Information read:
http://wiki.castlecops.com/Malware_Removal_and_Prevention:_Overview
http://wiki.castlecops.com/Malware_Prevention:_Prevent_Re-infection
http://www.castlecops.com/f67-Hijackthis_Spyware_Viruses_Worms_Trojans_Oh_My.html
http://aumha.org/a/quickfix.htm
http://aumha.org/secure.htm
http://aumha.org/a/parasite.php
http://www.castlecops.com/t102301-Hijackthis_Guidelines_Read_Before_Posting.html
http://www.techsupportforum.com/security-center/hijackthis-log-help/15968-please-read-before-posting-
http://forum.aumha.org/viewtopic.php?t=4075&sid=901703d08c2ace31389ffef2d84b6607