Could be possible that templates have got corrupted. Create new template and put them in the desired locations.
Start a new files for each type and then save them as Part, Assembly and Drawing template in this folder, overwriting the existing ones.
For fixing the file association, right click on the file and select properties. And then click on change and make sure it is either selected to SOLIDWORKS launcher or S 2015.
Thank you for your help so far. I understand that I can overwrite the existing templates with new files. The problem is that I cannot start new files. When I try to start new files (part, drawing, or assembly), that is when the invalid template error pops up. If I choose to start with a blank template, nothing happens. If I hit cancel, I am back to the starting screen. I can't even start a new part, drawing, or assembly.
I also changed the default program to SOLIDWORKS Launcher. I can actually see small pictures of the parts that I made previously in the thumbnails next to the file name, I just cannot open them.
Any other solutions?
Have you checked out the path in question C:\ProgramData\SOLIDWORKS\SOLIDWORKS 2015\templates
to see if there are templates there?
Did you work with the default templates or did you use customized ones?
Where were your templates normally located? If you don't know then the only thing for it is doing a search on your system for the necessary files.
Something you should understand:
- SolidWorks will function properly whether the three fields on the "default templates" window are filled in or left blank.
- The part, assembly, and drawing templates in those three fields only get used when you ask SW to do something that requires SW to make a new part, assembly, or drawing; not when you make a new part, assembly, or drawing.
- When you start a new part, assembly, or drawing, by clicking either File>New... or the icon that looks like a blank piece of paper, you are taken to the folder specified in: System Options>File Locations, Show folders for: Document Templates.
- The location of "Document Templates" and "default templates" can be the same, different, or like I said in 1 above, "default templates" can be left blank.
Here's a simple way to fix it:
- Open a part file you made in the past, with SW 2013.
- Delete all features so the part is empty.
- Make any changes to the file properties, planes, lighting, etc. that you would like to exist whenever you start a new part.
- Save this blank part as your part template. Use the .prtdot file extension. Name it "inch part" or "mm part" or whatever makes sense to you. Place the part in a new folder that makes sense to you. You could call the folder "Part Assembly Draw".
- Do the same thing with an assembly file. Save it in the same folder as a .asmdot file.
- Do the same with a drawing file and save it in the same place as .drwdot file. (You can do this for each drawing size you may use)
- Go to System Options>File Locations, Show folder for: Document Templates. Select whatever is in the "Folders:" field and choose Delete. Choose Add, browse to your Part Assembly Draw folder, select OK.
- Go to System Options>Default Templates, and fill in the three fields by browsing to your Part Assembly Draw folder and selecting the appropriate file for each one.
Thank you for the detailed response. When trying to open a part (.SLDPRT) that I made in the past on SW 2013 in SW 2015 (step 1), nothing happens. SW 2015 will open, and the plain blank screen will remain. There is no indication of any loading processes of any kind on this blank screen. I have no idea why this is happening. Further, I must manually choose to open it with SW 2015 every time, as SW 2013 is still the default program (even though the program does not exist on my computer).
After uninstalling SW 2015 and reinstalling it, all of my problems went away. Everything opens fine now. Thank you all for your help!