no puedo ejecutar "restaurar sistema"

Hola
Limpia restore:
desde propiedades de Mi Pc o entrando en DOS, a saco:
Instrucciones:
Copio:
If your _RESTORE folders is occupying 52% of your hard disk then system
restore is not working correctly since by default system restore will allocate
up to a maximum 12% of the partition containing the windows folder for the
restore archive or 400MB where the partition is <4GB. It appears that System
Restore is not discarding (FIFOing) older data correctly, possibly because at
some time the system was not immediately rebooted following a state change
(switching SR either off or on).

So, my first suggestion is to reset System Restore:
To reset System Restore:
System | Performance | File System | Troubleshooting and check "Disable System
Restore", Apply and IMMEDIATELY reboot. This will flush you restore folder
and erase all checkpoints, then,
System | Performance | File System | Troubleshooting and uncheck "Disable
System Restore", Apply and again IMMEDIATELY reboot. This should now
automatically create a new checkpoint immediately following the restart.
Finally adjust the space allocated to the restore folder as explained earlier.

If this doesn't clear down the _restore archive (and it doesn't always when
users have experienced similar problems) the next suggestion is to boot to DOS
using a floppy and delete the entire _RESTORE folder structure from there:
a) Boot to DOS using a floppy. Do NOT choose "Minimal Boot" from the menu
when booting from a floppy but rather choose "Start computer with (or without)
CD-ROM support" otherwise the ATTRIB command will not be available.
b) At the DOS A:\> prompt, type:

ATTRIB -H -S -R C:\_RESTORE
REN C:\_RESTORE OLDREST

c) Remove the floppy
d) Reboot your PC
e) Delete the folder C:\OLDREST
f) Check that an automatic system restore checkpoint was created.
g) Finally adjust the space allocated to the restore folder:

Finally you may want to give system restore the once over by carrying out the
following quick test.
a) Create a shortcut on your desktop to a file.
b) Create a manual checkpoint
c) Delete the shortcut
d) Restore you PC to the checkpoint you created.
Was the shortcut restored? Did you see any error messages?
Mike Maltby MS-MVP

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Hola amigos,he estado poniendo y quitando el panda
antivirus,y borrando todas las carpetas relacionadas con
panda.Luego,me he dado cuenta que cada vez que pincho en
restaurar sistemas me aparece un mensaje:"no se puede
ejecutar restaurar sistema hasta que haya reiniciado el
equipo.Reinicie el equipo y ejecute restaurar sistema de
nuevo".Reinicio el equipo pero me sigue saliendo el mismo
texto y no ejecuta restaurar el sistema.
Por favor,ayudarme a volver a poner operativo el Restaurar
sistema.Decidme que pasos seguir para lograrlo.
Muchas gracias.