vanilla session in R Gui or RStudio

[env: Windows, R 3.6.6]

When I start R from the R Gui icon or from RStudio, I get a large number of packages loaded via a namespace. Not entirely clear where these come from.

As a result, I often run into problems updating packages because something is already loaded.  How can start a new gui session with minimal packages loaded?

sessionInfo()

R version 3.6.3 (2020-02-29)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 7 x64 (build 7601) Service Pack 1

Matrix products: default

locale:
[1] LC_COLLATE=English_United States.1252  LC_CTYPE=English_United States.1252   
[3] 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] statmod_1.4.34   xfun_0.18        tidyselect_1.1.0 reshape2_1.4.4   purrr_0.3.4      mitools_2.4     
 [7] splines_3.6.3    lattice_0.20-41  coefplot_1.2.6   carData_3.0-4    colorspace_1.4-1 vctrs_0.3.4     
[13] generics_0.0.2   htmltools_0.5.0  yaml_2.2.1       survival_3.2-7   rlang_0.4.7      pillar_1.4.6    
[19] nloptr_1.2.2.2   glue_1.4.2       DBI_1.1.0        lifecycle_0.2.0  plyr_1.8.6       stringr_1.4.0   
[25] effects_4.2-0    munsell_0.5.0    gtable_0.3.0     evaluate_0.14    knitr_1.30       fansi_0.4.1     
[31] Rcpp_1.0.5       scales_1.1.1     useful_1.2.6     fs_1.4.2         lme4_1.1-23      packrat_0.5.0   
[37] ggplot2_3.3.2    digest_0.6.25    stringi_1.4.6    insight_0.9.6    dplyr_1.0.2      survey_4.0      
[43] grid_3.6.3       cli_2.1.0        tools_3.6.3      magrittr_1.5     tibble_3.0.4     crayon_1.3.4    
[49] pkgconfig_2.0.3  ellipsis_0.3.1   MASS_7.3-53      Matrix_1.2-18    reprex_0.3.0     assertthat_0.2.1
[55] minqa_1.2.4      rmarkdown_2.4    rstudioapi_0.11  R6_2.4.1         boot_1.3-25      nnet_7.3-14     
[61] nlme_3.1-149     compiler_3.6.3

Michael Friendly     Email: friendly AT yorku DOT ca 
Professor, Psychology Dept. & Former Chair, ASA Statistical Graphics Section
York University      Voice: 416 736-2100 x66249 
4700 Keele Street    Web: http://www.datavis.ca | @datavisFriendly
Toronto, ONT  M3J 1P3 CANADA