YYYYYYYYY EEEEEEEEEEEEEEE DDDDDDDDDDDDDDD
I can now boot into my original os !!!!!
HOW ???
I thought I would give system restore another go.
I am quite excited so forgive what I write please.
As you will have read above i was booting os to a black screen with mouse pointer.
I tried a few standard things, read above.
All i managed to do was go round in circles.
I did try system restore from the win 7 install/repair usb stick.
No joy. Some error message maybe but I forget atm.
anyway whilst i was learning that there was no way of performing an in place upgrade install/repair i did happen across the idea of performing system restore from the command line.
as you will have read above i can get to the win 7 install/repair command line easily.
i tried rstrui.exe but got no where.
i tried %systemroot%\system32\restore\rstrui.exe but got a message complaining about x:
i tried c:\windows\syste32\restore\rstrui.exe but also got no where.
cd c:\windows\system32\restore\ revealed that rstrui.exe did not exist
so that put to an end the idea of using rstrui.exe. but reading further i saw stuff about hive files. dangerous stuff but i read on.
cd c:\windows\system32\config dir shows the 5 hives - default, sam, security,software, and system.
i saw that each hive also had a previous version but the dates were a little while ago.
i cd to the sub folder rather than dir RegBack but anyway i was delighted to see 04/03/2013 which in english is only 6 days before the dreaded 9th.
i carefully did this;
ren default default.bak
ren sam sam.bak
ren security security.bak
ren software software.bak
ren system system.bak
copy RegBack\*.*
rebooting i went ahead and selected normal. slight anxiety when the black screen with mouse pointer appeared but after a moment or two I got my glorious backdrop and was asked for my password.
i am now looking at my laptop with all its quirks n stuff just like i had left it.
i have 5 windows/popup
1 update adobe flash player
2 java update available
3 mcafee - your computer is at risk
4 a truecrypt message
5 click to run - a rather lengthy message.
of these messages the only one that is a surprise to me is the click to run one.
the others are things that seem quite normal.
so there you have it.
i solved it, by googling and more than a bit of patience.
many thanks to
jbaileyn for this post;
http://www.sevenforums.com/backup-restore/12152-system-restore-failed-2.html