Unable to install "org.Hs.eg.db" The problematic file, Rterm,exe is found in: C:\Program Files\R\R-4.1.0\bin\i386, but not elsewhere.

> if (!requireNamespace("BiocManager", quietly = TRUE))
+     install.packages("BiocManager")
> 
> BiocManager::install("org.Hs.eg.db")
Bioconductor version 3.13 (BiocManager 1.30.15), R 4.1.0 (2021-05-18)
Installing package(s) 'org.Hs.eg.db'
installing the source package ‘org.Hs.eg.db’

trying URL 'https://bioconductor.org/packages/3.13/data/annotation/src/contrib/org.Hs.eg.db_3.13.0.tar.gz'
Content type 'application/x-gzip' length 83002050 bytes (79.2 MB)
downloaded 79.2 MB

'"C:\PROGRA~1\R\R-41~1.0/bin/x64/Rterm.exe"' is not recognized as an internal or external command,
operable program or batch file.

# include your problematic code here with any corresponding output 
# please also include the results of running the following in an R session 

sessionInfo( )
R version 4.1.0 (2021-05-18)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 10 x64 (build 18363)

Matrix products: default

locale:
[1] LC_COLLATE=English_United States.1252  LC_CTYPE=English_United States.1252    LC_MONETARY=English_United States.1252 LC_NUMERIC=C                          
[5] LC_TIME=English_United States.1252    

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

loaded via a namespace (and not attached):
[1] BiocManager_1.30.15 compiler_4.1.0      tools_4.1.0         parallel_4.1.0      Biobase_2.52.0      BiocGenerics_0.38.0

If you don't have an Rterm.exe in C:\Program Files\R\R-4.1.0\bin\x64 then something is probably borked with your installation. You might try re-installing and see if that helps.