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did you try restarting your computer?
it can help resolving many issues.
if not, you can uninstall previous version of nvda and reinstall new
version, or use system restore.
On 3/18/18, Mr. Wong Chi Wai, William <email@example.com> wrote:
I come across the following problem when updating my old NVDA version.
1. Win 7 professional with NVDA 2014.4 installed
2. downloaded NVDA2018.1 and run the exe file
3. progress as usual, yet, when the program was installing, the
following error message pop up
The installation is unable to remove or overwrite a file. Another copy
may be running on another logged-on user account. Please make sure all
installed copies of NVDA are shut down and try the installation again.
4. I try clicking retry and the problem is still there
5. I then click cancel and the install program quit
6. I press ctrl alt n want to call back the original NVDA, however, the
old NVDA didn't run.
7. with sighted assistance, I try running the 2018 exe file again,
however the same error message appear again.
8. I try logout again and run the 2018 installer again, however the
error appear again
9. I have to run the old NVDA 2014.4 installer, and the NVDA is restored
Any advice would be helpful, thanks.
were I given all the seven heavens
with all they contain
in order that
I may disobey God
by depriving an ant
from the husk of a grain of barley,
I would not do it.