I would be grateful for any help on this problem which affects only one desktop out of two desktops and a laptop all running XP Pro (SP2).
Help & Support will not run. Re-installing Windows followed by ages of time on Windows updates restores H & S for a time. Restore does not allow setting restore points until I switch off restore, reboot and then switch it on again. An automatic restore point is generated but this disappears after a few days. Subsequently Windows won’t let me create a restore point even immediately after a re-boot and then, after a time, I can’t even get at H & S.
Does anyone have any ideas?