Corel X7 crashes on new document or open document...

Hi,
Sorry. I can't help. I just have a few suggestions for the future.
1. In the future, make "Restore" points when things are going well. (Look
them up in Windows HELP.)
2. Some processes such as Windows Update automatically make Restore points
before they execute. You may be able to find a Restore point which will take
you back to the good old days.
3. PhotoPaint and PhotoShop only allow three installations. Before you
wipe them off the face of the earth, they have to be correctly uninstalled.
Otherwise, you will reduce the number of times that you can reinstall.
PhotoPaint must be uninstalled when you are on the Corel internet site.
PhotoShop has some hocus pocus for uninstalling which is shown under HELP.
4. Always keep an anti-virus and an anti-malware application going in the
background. I'm not recommending any. However, I happen to be using Norton
360 and Malwarebytes.

BEST OF ALL !

1. Make an IMAGE of your C drive on an external hard drive when all looks
well. (See HELP in Windows.) Never - ever - make one when there is
trouble. Make and save a few IMAGES every month or so just in case you've
made an IMAGE containing a virus. Again, I don't recommend any programs but
I happen to use MACRIUM. The IMAGE utility in Windows hasn't worked for
most people for the last few versions. Corel and Adobe never even know that
they have been wiped out and reinstalled but play it safe anyhow and
correctly uninstall them.
2. Be sure to make a RESCUE disk with each IMAGE. In that way you can
reboot and run the RESTORE operation from the RESCUE disk without ever
touching an infected C drive.
----- GOOD LUCK -----
Phil