C'mon, this is the law section, you need a bit more detail than that.
the following from wikipedia
There is provision in United Kingdom law for an insolvent company to be placed "in administration". Various authorities may appoint an administrator, principally including:
the courts (on application from a creditor, directors or partners)
the holder of a qualifying floating charge over the assets of the business
the company itself
the directors of the company concerned
a creditor
The task of the administrator is to manage the business so that the creditors can minimise the scale of their losses. Ideally, the administrator will sell the business as a going concern, securing the best price. It is quite probable that he or she will sell any realisable assets separately: the whole may be worth less than the sum of the parts (see Asset stripping).