my pc froze last week,mate said use recovery disk,takes pc back to factory settings,since then internet slow,still freezing,shutting itself down ,any help out there

What is the exact make & model of the computer?

How old is it? Change this setting:

rt. click My Computer then click Properties then Advanced then Startup and Recovery Settings then unclick Automatically restart

Also: look in your Event viewer: rt. click My Computer then click Manage then Event Viewer.
Or: Administrative Tools/Event Viewer or Start/Run/ eventvwr
Open the system as well as the application tabs & look for X errors. Click error line for details.
Post back the source & event id especially of errors that seem to coincide with a crash.

Also:

Go to start | search (type in) .dmp
Note the location of your latest .dmp file.

Then:

1) Download and install the
Debugging Tools from Microsoft
2) Download and install this
debugwiz
3) Open the Wiz & Browse to, or paste in the path to, your latest .dmp file.
4) After the Wiz creates a Text document attach it back to this thread.