What is the problem with your old PC?

A staggering 65% of problems which a PC encounters, whether in
business or at home, are not caused by hardware problems, they
are not caused by viruses, they are not caused by spam, but...

They are caused by background tasks belonging largely to
legitimate and well-known software you use every day.
and also to PC users them self especially those who ignore
install-info-descriptions, or similar instructions concerning a release.

From PC lock-ups to illegal operations, Internet Explorer crashes,
slow-downs, and other frustrations, many problems purely and
simply come down to what is running in the background on your
PC and currently demanding attention by the computer. 

The trick to having a PC that runs smoothly is to know which background
tasks are essential, which are not, and which only need to run sometimes.
By managing these processes more intelligently your system can free up
more memory, run more reliably and avoid crashes and lock ups.

From where can I download "orbit's OneClick Youtube downloader" as well as "recorder" ?

gYou can enable orbit's OneClick Youtube downloader from the following way in orbit downloader.

Minimalist for Google Calendar Tweaks Google Calendar to Your Liking

Chrome: We love tweaking Gmail to our liking with extensions like Minimalist Gmail, but if you've wanted to do the same to Google Calendar, Minimalist for Google Calendar will let you remove links, tweak buttons, and change the colors of your Calendar.

Minimalist for Google Calendar is very similar to its Gmail-based brother: it lets you tweak all sorts of different interface elements of Google Calendar so it fits what you need. Don't need the "other calendars" box? Remove it. Want a link to Google Voice at the top instead of to Google Docs? You can change it. You can also change the color of nearly any part of the page, as well as even remove things like the mini calendar and logo to make it more friendly to netbook screens. There are a lot of settings buried in this extension, so if you're a Google Calendar user, check this extension out—you'll probably find a few things in there you want enabled.

Minimalist for Google Calendar is a free download, works wherever Google Chrome does.