Julie, try this, open Internet Explorer, I assume you are talking about
Internet Explorer, go to Tools, select Internet Options, on the General tab,
make sure that History is set to more than one day. Second, click the
Settings button under Temporary Internet Files on the same tab, how many
megabytes is allocated for amount of disk space to be used for Temporary
Internet files? Also, go to the Advanced tab, scroll to the security
section and make sure "Empty Temporary Internet Files folder when browser is
closed," is NOT checked. Portions of various webpages go into this folder
and if set to empty on close or not enough space is allocated, it might have
an effect on the length of time History covers.
How much free space do you have on your hard drive, if too small, this may
be preventing Windows from saving too much History.
Also, do you have security software installed, Norton Security Suite for
example, it may be set to empty such files each time you boot in which case
it or whatever security software you are using would be deleting the very
files you need for longer historical searches.