Here are some fantastic utilities that are just so good and best of all they are free.
You can download nearly all of these in one go from www.ninite.com Just click what you want and download them all in one fell swoop. No tricky installations, no irksome next buttons.
Dropbox - An online secure backup drive, syncs with your pc disc invisibly. Allows you to collaborate and share files with people. https://www.dropbox.com/
Evernote - If you got a scanner get this, scan in a letter, bill, receipt, and it converts it into searchable text. Think of it like a giant shoebox under your bed. You can stuff it with all the gumphf you want, but find things from months back in an instant. https://www.evernote.com
Basecamp - Project management and nifty to do list. Don't know how I'd get any work done without this. Set yourself milestones, to do lists, reminders. Collaborate, whiteboard. Very simple to use. They also do a contact management tool called highrise. www.Basecamphq.com
Microsoft security essentials. No more viruses or nasties on your computer. https://support.microsoft.com/en-us/help/14210/security-essentials-download
Irfanview - Small simple graphics editor/viewer. Ideal for resizing images. www.irfanview.com/
FoxitPDF - PDF file view that works without your PC freezing up on you like Adobe Acrobat does. Lightweight, powerful and fast. www.foxitsoftware.com/pdf/reader/
CutePDF - create your PDF documents without paying hundreds of pounds to
Adobe for acrobat professional. www.cutepdf.com/
Launchy - Speeds up running new applications, no need for icon clutter all over your desktop. www.launchy.net/