In the recent past, there has been an increasing need to restore
computers to a previous point and a previous date. This has been found
to be one of the safest ways of preventing loss of data that might arise
from malfunctioning computer operating systems or programs in its
current form. Restoring a computer to a previous date is a way in which
computer systems can be set to function as if it were functioning on the
set date. The main aim of doing this is to find a point in time when
the computer worked properly and set it to that date so it functions as
if it were from that date onwards. It's functionality and additional
data that might have been added between that time and the current time
is ignored and erased. In most cases it is these programs that had been
added or the new data that might have resulted in the malfunction which
then necessitates restore.
Malfunctions that lead to restoration to a
previous date are mostly as a result of new data that has been added
between the time the computer last functioned properly and the current
time. Software especially whose data signature cannot be verified is the
source of trouble in most cases. When these get integrated into the
computer programs they interfere with normal computer operations. This
restore would not be possible were it not for the computer backup
systems. Computer backup systems are a way in which the functionality of
a computer can be replicated or copied and kept. They are kept in the
computer's own storage systems or on external storage systems. The
internal backup systems are mostly automatic so that the computer
automatically creates and stores the copy of functionality at intervals.
It is these dates and copies of functionality that constitute the
restore points at which the computer can be restored to a previous date.
Backups
are also external. Here the computer functionality copy is stored in
portable storage devices such as flash disks or large portable disks.
Using programs that allow backup, the functionality is copied by users
occasionally or at intervals. Backup systems are also internet based so
that the functionality copy is done onto online based storage through
the internet. When need arises for restoring a computer to a previous
date the computer may by itself determine a problem in functionality in
its current form and prompt the user to restore it to a previous date
when it functioned normally. This usually occurs during start up at
which the computer automatically loads options to restore the computer
to a previous date. The user simply just selects the restore option and
has the computer restored.
Sometimes the computer restore process is
more complex especially if it involves other programs such as data and
record storage programs. Complete repair of the operating systems is
therefore done, followed by installation of the programs that allow
restoration of the computer program to a previous date.
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