Podarilo se mi nabootovat to z cd, ale kdyz chci dat upgrade windows

Another solution: Try to delete C:\Windows\System32\FNTCACHE.DAT.

1. You will need the Win32k.sys and Gdi32.dll files from the System32 directory on a system that has not received the patch. This source system must also have the same bit width, ie. 32-bit or 64-bit, and it should be at the same service pack level.

2. Use Hiren's Boot CD or similar boot disc to boot, OR take the drive out of the system and plug it into another system as a secondary drive. I used HBCD and was fortunate enough to have a second drive with a pre-update Windows installation.

3. Back up the Win32k.sys and Gdi32.dll files from the affected Windows installation. It doesn't matter where, and they are small.

4. Overwrite the affected installation's Win32k.sys and Gdi32.dll files from your copy taken from the other working installation.

5. Boot the now-operational system.

6. Uninstall the KB update via the Programs and Features control panel, View Installed Updates sidebar link, so it isn't left in an indeterminate state. This will require a reboot. Your system will boot normally.