My autocad doesn't open

[Anonymous]

I try to open my autocad, and it opens in the loading window and then closes, it doesn't give me any error message. I try what autodesk recommended and also a clean uninstall and it remains the same ... not sure what else to do. I have another Autodesk product and it works perfectly, but AutoCAD does not. help

[Alfred.NESWADBA]

Hi,

>> I try what autodesk recommended

Can you describe what that way, otherwise we don't know exactly what you might have missed and it's worth to suggest this or not ...

I would start with

• install updates
• reset profile
• start without hardware acceleration (startparameter /SAFEMODE)

- alfred -

[beyoungjr]

AutoCAD version?

Windows version?

PC specs?

Any crash report?

Not enough info for us to diagnose.

Blaine

[Anonymous]

oh yes i mean

i try a clean uninstall

i try rename the cascainfo.cas file

i check the FLEXnet 

i navegate to the adskflex_tsf.data

and it still the same

[Anonymous]

autocad 2021 i also try download the 2020 and still doesn't open

windows 10

procesator Intel(R) Core(TM) i7-8565U CPU @ 1.80GHz 1.99 GHz

RAM 16.0 GB (15.8 GB usable)

it uses 64 bits

- i had the 2020 version before and it runned good, i stop using it for a while and then this month i wanted to use it and it doesn' t open-

it doesn't show me any error message it just closes 

[beyoungjr]

When you tried the clean uninstall did you also attempt to clean up leftover junk with CCLEANER or similar?

I also would look at your graphics processor!  You may need a compatible driver and that might come from an update or a roll-back to previous driver?

Keep me posted,

Blaine

[beyoungjr]

Also follow Dean's instruction at this post for uninstalling...

https://forums.autodesk.com/t5/autocad-forum/unable-to-install-custom-oem-setup/m-p/10167926#M104723...

Blaine