10 November 2003
Stabilizers, UPS's, surge protectors
Necessary to have:
A stabilizer and surge protector
Good to have:
An Uninterruptible Power Supply, or UPS.
If you have a generous budget:
A battery back-up system, an alternative energy system (eg. solar, wind,
biogas) or a generator.
First aid: software
Use Windows utilities such as ScanDisk and Defrag on a monthly basis.
Keep your antivirus software updated and make sure you scan your PCs.
First aid: hardware
Buy an electrical hand blower (available in Arusha @ TSh 40,000) and
learn how to clean the dust out of system unit, keyboards, printers etc.
EOL recipients may contact A&A Computers for
a short course in preventive maintenance, free of charge:
Spybot - Search & Destroy can detect and
remove spyware of different kinds from your computer. Spyware is a
relatively new kind of threat that common anti-virus applications do not yet
Download this freeware utility at
The Google Toolbar integrates an Adware
Download it at
Net Nanny, refer to
Cost: about USD 40.00
ZoneAlarm is designed to protect your
cable-connected PC from hackers. This program includes four interlocking
security services: a firewall, an Application Control, an Internet Lock, and
Zones. The firewall controls the door to your computer and allows only
traffic that you understand and initiate. The Application Control allows you
to decide which applications can and cannot use the Internet.
ZoneAlarm, download at
Windows Policies for Windows 95, 98.
Under Win 95/98, one can restrict file,
network and printer access in a manner somewhat similar to Win NT/2000/XP,
by the use of Policies.
You run the "Policy Editor" (poledit.exe)
to set which users or groups can access what resources, for example,
access to the Control Panel, Hard Drive, Floppy Drive, Printers, make
changes to the Desktop.
The Windows "Policy Editor" setup can be
found in the Windows resource kit on your Win 95/98 installation CD. For
the Windows 95 installation CD-ROM, the policy editor (poledit.exe) is in
the \admin\apptools\poledit\ directory. For the Windows 98 installation
CD-ROM, the policy editor (poledit.exe) is in the \tools\reskit\netadmin\poledit\
Download it at